5885 строки
160 KiB
C
5885 строки
160 KiB
C
/*
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* Copyright IBM Corp. 2007, 2009
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* Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
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* Frank Pavlic <fpavlic@de.ibm.com>,
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* Thomas Spatzier <tspat@de.ibm.com>,
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* Frank Blaschka <frank.blaschka@de.ibm.com>
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*/
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#define KMSG_COMPONENT "qeth"
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#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/string.h>
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#include <linux/errno.h>
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#include <linux/kernel.h>
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#include <linux/ip.h>
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#include <linux/tcp.h>
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#include <linux/mii.h>
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#include <linux/kthread.h>
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#include <linux/slab.h>
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#include <net/iucv/af_iucv.h>
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#include <asm/ebcdic.h>
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#include <asm/io.h>
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#include <asm/sysinfo.h>
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#include <asm/compat.h>
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#include "qeth_core.h"
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struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = {
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/* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */
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/* N P A M L V H */
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[QETH_DBF_SETUP] = {"qeth_setup",
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8, 1, 8, 5, &debug_hex_ascii_view, NULL},
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[QETH_DBF_MSG] = {"qeth_msg", 8, 1, 11 * sizeof(long), 3,
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&debug_sprintf_view, NULL},
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[QETH_DBF_CTRL] = {"qeth_control",
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8, 1, QETH_DBF_CTRL_LEN, 5, &debug_hex_ascii_view, NULL},
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};
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EXPORT_SYMBOL_GPL(qeth_dbf);
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struct qeth_card_list_struct qeth_core_card_list;
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EXPORT_SYMBOL_GPL(qeth_core_card_list);
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struct kmem_cache *qeth_core_header_cache;
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EXPORT_SYMBOL_GPL(qeth_core_header_cache);
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static struct kmem_cache *qeth_qdio_outbuf_cache;
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static struct device *qeth_core_root_dev;
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static unsigned int known_devices[][6] = QETH_MODELLIST_ARRAY;
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static struct lock_class_key qdio_out_skb_queue_key;
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static struct mutex qeth_mod_mutex;
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static void qeth_send_control_data_cb(struct qeth_channel *,
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struct qeth_cmd_buffer *);
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static int qeth_issue_next_read(struct qeth_card *);
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static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *);
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static void qeth_setup_ccw(struct qeth_channel *, unsigned char *, __u32);
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static void qeth_free_buffer_pool(struct qeth_card *);
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static int qeth_qdio_establish(struct qeth_card *);
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static void qeth_free_qdio_buffers(struct qeth_card *);
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static void qeth_notify_skbs(struct qeth_qdio_out_q *queue,
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struct qeth_qdio_out_buffer *buf,
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enum iucv_tx_notify notification);
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static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf);
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static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
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struct qeth_qdio_out_buffer *buf,
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enum qeth_qdio_buffer_states newbufstate);
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static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *, int);
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struct workqueue_struct *qeth_wq;
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EXPORT_SYMBOL_GPL(qeth_wq);
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static void qeth_close_dev_handler(struct work_struct *work)
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{
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struct qeth_card *card;
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card = container_of(work, struct qeth_card, close_dev_work);
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QETH_CARD_TEXT(card, 2, "cldevhdl");
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rtnl_lock();
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dev_close(card->dev);
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rtnl_unlock();
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ccwgroup_set_offline(card->gdev);
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}
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void qeth_close_dev(struct qeth_card *card)
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{
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QETH_CARD_TEXT(card, 2, "cldevsubm");
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queue_work(qeth_wq, &card->close_dev_work);
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}
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EXPORT_SYMBOL_GPL(qeth_close_dev);
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static inline const char *qeth_get_cardname(struct qeth_card *card)
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{
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if (card->info.guestlan) {
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switch (card->info.type) {
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case QETH_CARD_TYPE_OSD:
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return " Virtual NIC QDIO";
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case QETH_CARD_TYPE_IQD:
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return " Virtual NIC Hiper";
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case QETH_CARD_TYPE_OSM:
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return " Virtual NIC QDIO - OSM";
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case QETH_CARD_TYPE_OSX:
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return " Virtual NIC QDIO - OSX";
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default:
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return " unknown";
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}
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} else {
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switch (card->info.type) {
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case QETH_CARD_TYPE_OSD:
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return " OSD Express";
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case QETH_CARD_TYPE_IQD:
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return " HiperSockets";
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case QETH_CARD_TYPE_OSN:
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return " OSN QDIO";
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case QETH_CARD_TYPE_OSM:
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return " OSM QDIO";
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case QETH_CARD_TYPE_OSX:
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return " OSX QDIO";
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default:
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return " unknown";
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}
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}
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return " n/a";
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}
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/* max length to be returned: 14 */
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const char *qeth_get_cardname_short(struct qeth_card *card)
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{
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if (card->info.guestlan) {
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switch (card->info.type) {
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case QETH_CARD_TYPE_OSD:
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return "Virt.NIC QDIO";
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case QETH_CARD_TYPE_IQD:
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return "Virt.NIC Hiper";
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case QETH_CARD_TYPE_OSM:
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return "Virt.NIC OSM";
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case QETH_CARD_TYPE_OSX:
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return "Virt.NIC OSX";
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default:
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return "unknown";
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}
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} else {
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switch (card->info.type) {
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case QETH_CARD_TYPE_OSD:
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switch (card->info.link_type) {
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case QETH_LINK_TYPE_FAST_ETH:
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return "OSD_100";
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case QETH_LINK_TYPE_HSTR:
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return "HSTR";
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case QETH_LINK_TYPE_GBIT_ETH:
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return "OSD_1000";
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case QETH_LINK_TYPE_10GBIT_ETH:
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return "OSD_10GIG";
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case QETH_LINK_TYPE_LANE_ETH100:
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return "OSD_FE_LANE";
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case QETH_LINK_TYPE_LANE_TR:
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return "OSD_TR_LANE";
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case QETH_LINK_TYPE_LANE_ETH1000:
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return "OSD_GbE_LANE";
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case QETH_LINK_TYPE_LANE:
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return "OSD_ATM_LANE";
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default:
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return "OSD_Express";
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}
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case QETH_CARD_TYPE_IQD:
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return "HiperSockets";
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case QETH_CARD_TYPE_OSN:
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return "OSN";
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case QETH_CARD_TYPE_OSM:
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return "OSM_1000";
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case QETH_CARD_TYPE_OSX:
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return "OSX_10GIG";
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default:
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return "unknown";
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}
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}
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return "n/a";
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}
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void qeth_set_recovery_task(struct qeth_card *card)
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{
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card->recovery_task = current;
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}
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EXPORT_SYMBOL_GPL(qeth_set_recovery_task);
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void qeth_clear_recovery_task(struct qeth_card *card)
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{
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card->recovery_task = NULL;
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}
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EXPORT_SYMBOL_GPL(qeth_clear_recovery_task);
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static bool qeth_is_recovery_task(const struct qeth_card *card)
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{
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return card->recovery_task == current;
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}
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void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
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int clear_start_mask)
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{
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unsigned long flags;
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spin_lock_irqsave(&card->thread_mask_lock, flags);
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card->thread_allowed_mask = threads;
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if (clear_start_mask)
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card->thread_start_mask &= threads;
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spin_unlock_irqrestore(&card->thread_mask_lock, flags);
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wake_up(&card->wait_q);
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}
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EXPORT_SYMBOL_GPL(qeth_set_allowed_threads);
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int qeth_threads_running(struct qeth_card *card, unsigned long threads)
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{
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unsigned long flags;
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int rc = 0;
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spin_lock_irqsave(&card->thread_mask_lock, flags);
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rc = (card->thread_running_mask & threads);
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spin_unlock_irqrestore(&card->thread_mask_lock, flags);
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return rc;
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}
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EXPORT_SYMBOL_GPL(qeth_threads_running);
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int qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
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{
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if (qeth_is_recovery_task(card))
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return 0;
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return wait_event_interruptible(card->wait_q,
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qeth_threads_running(card, threads) == 0);
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}
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EXPORT_SYMBOL_GPL(qeth_wait_for_threads);
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void qeth_clear_working_pool_list(struct qeth_card *card)
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{
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struct qeth_buffer_pool_entry *pool_entry, *tmp;
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QETH_CARD_TEXT(card, 5, "clwrklst");
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list_for_each_entry_safe(pool_entry, tmp,
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&card->qdio.in_buf_pool.entry_list, list){
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list_del(&pool_entry->list);
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}
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}
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EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list);
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static int qeth_alloc_buffer_pool(struct qeth_card *card)
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{
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struct qeth_buffer_pool_entry *pool_entry;
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void *ptr;
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int i, j;
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QETH_CARD_TEXT(card, 5, "alocpool");
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for (i = 0; i < card->qdio.init_pool.buf_count; ++i) {
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pool_entry = kzalloc(sizeof(*pool_entry), GFP_KERNEL);
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if (!pool_entry) {
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qeth_free_buffer_pool(card);
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return -ENOMEM;
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}
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for (j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j) {
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ptr = (void *) __get_free_page(GFP_KERNEL);
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if (!ptr) {
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while (j > 0)
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free_page((unsigned long)
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pool_entry->elements[--j]);
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kfree(pool_entry);
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qeth_free_buffer_pool(card);
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return -ENOMEM;
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}
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pool_entry->elements[j] = ptr;
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}
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list_add(&pool_entry->init_list,
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&card->qdio.init_pool.entry_list);
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}
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return 0;
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}
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int qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
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{
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QETH_CARD_TEXT(card, 2, "realcbp");
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if ((card->state != CARD_STATE_DOWN) &&
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(card->state != CARD_STATE_RECOVER))
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return -EPERM;
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/* TODO: steel/add buffers from/to a running card's buffer pool (?) */
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qeth_clear_working_pool_list(card);
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qeth_free_buffer_pool(card);
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card->qdio.in_buf_pool.buf_count = bufcnt;
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card->qdio.init_pool.buf_count = bufcnt;
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return qeth_alloc_buffer_pool(card);
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}
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EXPORT_SYMBOL_GPL(qeth_realloc_buffer_pool);
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static inline int qeth_cq_init(struct qeth_card *card)
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{
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int rc;
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if (card->options.cq == QETH_CQ_ENABLED) {
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QETH_DBF_TEXT(SETUP, 2, "cqinit");
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memset(card->qdio.c_q->qdio_bufs, 0,
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QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
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card->qdio.c_q->next_buf_to_init = 127;
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rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT,
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card->qdio.no_in_queues - 1, 0,
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127);
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if (rc) {
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QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
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goto out;
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}
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}
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rc = 0;
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out:
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return rc;
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}
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static inline int qeth_alloc_cq(struct qeth_card *card)
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{
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int rc;
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if (card->options.cq == QETH_CQ_ENABLED) {
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int i;
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struct qdio_outbuf_state *outbuf_states;
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QETH_DBF_TEXT(SETUP, 2, "cqon");
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card->qdio.c_q = kzalloc(sizeof(struct qeth_qdio_q),
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GFP_KERNEL);
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if (!card->qdio.c_q) {
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rc = -1;
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goto kmsg_out;
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}
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QETH_DBF_HEX(SETUP, 2, &card->qdio.c_q, sizeof(void *));
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for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) {
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card->qdio.c_q->bufs[i].buffer =
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&card->qdio.c_q->qdio_bufs[i];
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}
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card->qdio.no_in_queues = 2;
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card->qdio.out_bufstates =
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kzalloc(card->qdio.no_out_queues *
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QDIO_MAX_BUFFERS_PER_Q *
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sizeof(struct qdio_outbuf_state), GFP_KERNEL);
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outbuf_states = card->qdio.out_bufstates;
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if (outbuf_states == NULL) {
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rc = -1;
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goto free_cq_out;
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}
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for (i = 0; i < card->qdio.no_out_queues; ++i) {
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card->qdio.out_qs[i]->bufstates = outbuf_states;
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outbuf_states += QDIO_MAX_BUFFERS_PER_Q;
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}
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} else {
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QETH_DBF_TEXT(SETUP, 2, "nocq");
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card->qdio.c_q = NULL;
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card->qdio.no_in_queues = 1;
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}
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QETH_DBF_TEXT_(SETUP, 2, "iqc%d", card->qdio.no_in_queues);
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rc = 0;
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out:
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return rc;
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free_cq_out:
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kfree(card->qdio.c_q);
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card->qdio.c_q = NULL;
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kmsg_out:
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dev_err(&card->gdev->dev, "Failed to create completion queue\n");
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goto out;
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}
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static inline void qeth_free_cq(struct qeth_card *card)
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{
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if (card->qdio.c_q) {
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--card->qdio.no_in_queues;
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kfree(card->qdio.c_q);
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card->qdio.c_q = NULL;
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}
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kfree(card->qdio.out_bufstates);
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card->qdio.out_bufstates = NULL;
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}
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static inline enum iucv_tx_notify qeth_compute_cq_notification(int sbalf15,
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int delayed) {
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enum iucv_tx_notify n;
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switch (sbalf15) {
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case 0:
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n = delayed ? TX_NOTIFY_DELAYED_OK : TX_NOTIFY_OK;
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break;
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case 4:
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case 16:
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case 17:
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case 18:
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n = delayed ? TX_NOTIFY_DELAYED_UNREACHABLE :
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TX_NOTIFY_UNREACHABLE;
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break;
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default:
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n = delayed ? TX_NOTIFY_DELAYED_GENERALERROR :
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TX_NOTIFY_GENERALERROR;
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break;
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}
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return n;
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}
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static inline void qeth_cleanup_handled_pending(struct qeth_qdio_out_q *q,
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int bidx, int forced_cleanup)
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{
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if (q->card->options.cq != QETH_CQ_ENABLED)
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return;
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if (q->bufs[bidx]->next_pending != NULL) {
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struct qeth_qdio_out_buffer *head = q->bufs[bidx];
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struct qeth_qdio_out_buffer *c = q->bufs[bidx]->next_pending;
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while (c) {
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if (forced_cleanup ||
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atomic_read(&c->state) ==
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QETH_QDIO_BUF_HANDLED_DELAYED) {
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struct qeth_qdio_out_buffer *f = c;
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QETH_CARD_TEXT(f->q->card, 5, "fp");
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QETH_CARD_TEXT_(f->q->card, 5, "%lx", (long) f);
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/* release here to avoid interleaving between
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outbound tasklet and inbound tasklet
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regarding notifications and lifecycle */
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qeth_release_skbs(c);
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c = f->next_pending;
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WARN_ON_ONCE(head->next_pending != f);
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head->next_pending = c;
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kmem_cache_free(qeth_qdio_outbuf_cache, f);
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} else {
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head = c;
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c = c->next_pending;
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}
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}
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}
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if (forced_cleanup && (atomic_read(&(q->bufs[bidx]->state)) ==
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QETH_QDIO_BUF_HANDLED_DELAYED)) {
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/* for recovery situations */
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q->bufs[bidx]->aob = q->bufstates[bidx].aob;
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qeth_init_qdio_out_buf(q, bidx);
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QETH_CARD_TEXT(q->card, 2, "clprecov");
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}
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}
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static inline void qeth_qdio_handle_aob(struct qeth_card *card,
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unsigned long phys_aob_addr) {
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struct qaob *aob;
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struct qeth_qdio_out_buffer *buffer;
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enum iucv_tx_notify notification;
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aob = (struct qaob *) phys_to_virt(phys_aob_addr);
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QETH_CARD_TEXT(card, 5, "haob");
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QETH_CARD_TEXT_(card, 5, "%lx", phys_aob_addr);
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buffer = (struct qeth_qdio_out_buffer *) aob->user1;
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QETH_CARD_TEXT_(card, 5, "%lx", aob->user1);
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if (atomic_cmpxchg(&buffer->state, QETH_QDIO_BUF_PRIMED,
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QETH_QDIO_BUF_IN_CQ) == QETH_QDIO_BUF_PRIMED) {
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notification = TX_NOTIFY_OK;
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} else {
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WARN_ON_ONCE(atomic_read(&buffer->state) !=
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QETH_QDIO_BUF_PENDING);
|
|
atomic_set(&buffer->state, QETH_QDIO_BUF_IN_CQ);
|
|
notification = TX_NOTIFY_DELAYED_OK;
|
|
}
|
|
|
|
if (aob->aorc != 0) {
|
|
QETH_CARD_TEXT_(card, 2, "aorc%02X", aob->aorc);
|
|
notification = qeth_compute_cq_notification(aob->aorc, 1);
|
|
}
|
|
qeth_notify_skbs(buffer->q, buffer, notification);
|
|
|
|
buffer->aob = NULL;
|
|
qeth_clear_output_buffer(buffer->q, buffer,
|
|
QETH_QDIO_BUF_HANDLED_DELAYED);
|
|
|
|
/* from here on: do not touch buffer anymore */
|
|
qdio_release_aob(aob);
|
|
}
|
|
|
|
static inline int qeth_is_cq(struct qeth_card *card, unsigned int queue)
|
|
{
|
|
return card->options.cq == QETH_CQ_ENABLED &&
|
|
card->qdio.c_q != NULL &&
|
|
queue != 0 &&
|
|
queue == card->qdio.no_in_queues - 1;
|
|
}
|
|
|
|
|
|
static int qeth_issue_next_read(struct qeth_card *card)
|
|
{
|
|
int rc;
|
|
struct qeth_cmd_buffer *iob;
|
|
|
|
QETH_CARD_TEXT(card, 5, "issnxrd");
|
|
if (card->read.state != CH_STATE_UP)
|
|
return -EIO;
|
|
iob = qeth_get_buffer(&card->read);
|
|
if (!iob) {
|
|
dev_warn(&card->gdev->dev, "The qeth device driver "
|
|
"failed to recover an error on the device\n");
|
|
QETH_DBF_MESSAGE(2, "%s issue_next_read failed: no iob "
|
|
"available\n", dev_name(&card->gdev->dev));
|
|
return -ENOMEM;
|
|
}
|
|
qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
|
|
QETH_CARD_TEXT(card, 6, "noirqpnd");
|
|
rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
|
|
(addr_t) iob, 0, 0);
|
|
if (rc) {
|
|
QETH_DBF_MESSAGE(2, "%s error in starting next read ccw! "
|
|
"rc=%i\n", dev_name(&card->gdev->dev), rc);
|
|
atomic_set(&card->read.irq_pending, 0);
|
|
card->read_or_write_problem = 1;
|
|
qeth_schedule_recovery(card);
|
|
wake_up(&card->wait_q);
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card)
|
|
{
|
|
struct qeth_reply *reply;
|
|
|
|
reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
|
|
if (reply) {
|
|
atomic_set(&reply->refcnt, 1);
|
|
atomic_set(&reply->received, 0);
|
|
reply->card = card;
|
|
}
|
|
return reply;
|
|
}
|
|
|
|
static void qeth_get_reply(struct qeth_reply *reply)
|
|
{
|
|
WARN_ON(atomic_read(&reply->refcnt) <= 0);
|
|
atomic_inc(&reply->refcnt);
|
|
}
|
|
|
|
static void qeth_put_reply(struct qeth_reply *reply)
|
|
{
|
|
WARN_ON(atomic_read(&reply->refcnt) <= 0);
|
|
if (atomic_dec_and_test(&reply->refcnt))
|
|
kfree(reply);
|
|
}
|
|
|
|
static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc,
|
|
struct qeth_card *card)
|
|
{
|
|
char *ipa_name;
|
|
int com = cmd->hdr.command;
|
|
ipa_name = qeth_get_ipa_cmd_name(com);
|
|
if (rc)
|
|
QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s/%s returned "
|
|
"x%X \"%s\"\n",
|
|
ipa_name, com, dev_name(&card->gdev->dev),
|
|
QETH_CARD_IFNAME(card), rc,
|
|
qeth_get_ipa_msg(rc));
|
|
else
|
|
QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s/%s succeeded\n",
|
|
ipa_name, com, dev_name(&card->gdev->dev),
|
|
QETH_CARD_IFNAME(card));
|
|
}
|
|
|
|
static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card,
|
|
struct qeth_cmd_buffer *iob)
|
|
{
|
|
struct qeth_ipa_cmd *cmd = NULL;
|
|
|
|
QETH_CARD_TEXT(card, 5, "chkipad");
|
|
if (IS_IPA(iob->data)) {
|
|
cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
|
|
if (IS_IPA_REPLY(cmd)) {
|
|
if (cmd->hdr.command != IPA_CMD_SETCCID &&
|
|
cmd->hdr.command != IPA_CMD_DELCCID &&
|
|
cmd->hdr.command != IPA_CMD_MODCCID &&
|
|
cmd->hdr.command != IPA_CMD_SET_DIAG_ASS)
|
|
qeth_issue_ipa_msg(cmd,
|
|
cmd->hdr.return_code, card);
|
|
return cmd;
|
|
} else {
|
|
switch (cmd->hdr.command) {
|
|
case IPA_CMD_STOPLAN:
|
|
if (cmd->hdr.return_code ==
|
|
IPA_RC_VEPA_TO_VEB_TRANSITION) {
|
|
dev_err(&card->gdev->dev,
|
|
"Interface %s is down because the "
|
|
"adjacent port is no longer in "
|
|
"reflective relay mode\n",
|
|
QETH_CARD_IFNAME(card));
|
|
qeth_close_dev(card);
|
|
} else {
|
|
dev_warn(&card->gdev->dev,
|
|
"The link for interface %s on CHPID"
|
|
" 0x%X failed\n",
|
|
QETH_CARD_IFNAME(card),
|
|
card->info.chpid);
|
|
qeth_issue_ipa_msg(cmd,
|
|
cmd->hdr.return_code, card);
|
|
}
|
|
card->lan_online = 0;
|
|
if (card->dev && netif_carrier_ok(card->dev))
|
|
netif_carrier_off(card->dev);
|
|
return NULL;
|
|
case IPA_CMD_STARTLAN:
|
|
dev_info(&card->gdev->dev,
|
|
"The link for %s on CHPID 0x%X has"
|
|
" been restored\n",
|
|
QETH_CARD_IFNAME(card),
|
|
card->info.chpid);
|
|
netif_carrier_on(card->dev);
|
|
card->lan_online = 1;
|
|
if (card->info.hwtrap)
|
|
card->info.hwtrap = 2;
|
|
qeth_schedule_recovery(card);
|
|
return NULL;
|
|
case IPA_CMD_SETBRIDGEPORT:
|
|
case IPA_CMD_ADDRESS_CHANGE_NOTIF:
|
|
if (card->discipline->control_event_handler
|
|
(card, cmd))
|
|
return cmd;
|
|
else
|
|
return NULL;
|
|
case IPA_CMD_MODCCID:
|
|
return cmd;
|
|
case IPA_CMD_REGISTER_LOCAL_ADDR:
|
|
QETH_CARD_TEXT(card, 3, "irla");
|
|
break;
|
|
case IPA_CMD_UNREGISTER_LOCAL_ADDR:
|
|
QETH_CARD_TEXT(card, 3, "urla");
|
|
break;
|
|
default:
|
|
QETH_DBF_MESSAGE(2, "Received data is IPA "
|
|
"but not a reply!\n");
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return cmd;
|
|
}
|
|
|
|
void qeth_clear_ipacmd_list(struct qeth_card *card)
|
|
{
|
|
struct qeth_reply *reply, *r;
|
|
unsigned long flags;
|
|
|
|
QETH_CARD_TEXT(card, 4, "clipalst");
|
|
|
|
spin_lock_irqsave(&card->lock, flags);
|
|
list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
|
|
qeth_get_reply(reply);
|
|
reply->rc = -EIO;
|
|
atomic_inc(&reply->received);
|
|
list_del_init(&reply->list);
|
|
wake_up(&reply->wait_q);
|
|
qeth_put_reply(reply);
|
|
}
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
|
atomic_set(&card->write.irq_pending, 0);
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list);
|
|
|
|
static int qeth_check_idx_response(struct qeth_card *card,
|
|
unsigned char *buffer)
|
|
{
|
|
if (!buffer)
|
|
return 0;
|
|
|
|
QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN);
|
|
if ((buffer[2] & 0xc0) == 0xc0) {
|
|
QETH_DBF_MESSAGE(2, "received an IDX TERMINATE "
|
|
"with cause code 0x%02x%s\n",
|
|
buffer[4],
|
|
((buffer[4] == 0x22) ?
|
|
" -- try another portname" : ""));
|
|
QETH_CARD_TEXT(card, 2, "ckidxres");
|
|
QETH_CARD_TEXT(card, 2, " idxterm");
|
|
QETH_CARD_TEXT_(card, 2, " rc%d", -EIO);
|
|
if (buffer[4] == 0xf6) {
|
|
dev_err(&card->gdev->dev,
|
|
"The qeth device is not configured "
|
|
"for the OSI layer required by z/VM\n");
|
|
return -EPERM;
|
|
}
|
|
return -EIO;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void qeth_setup_ccw(struct qeth_channel *channel, unsigned char *iob,
|
|
__u32 len)
|
|
{
|
|
struct qeth_card *card;
|
|
|
|
card = CARD_FROM_CDEV(channel->ccwdev);
|
|
QETH_CARD_TEXT(card, 4, "setupccw");
|
|
if (channel == &card->read)
|
|
memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
|
|
else
|
|
memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
|
|
channel->ccw.count = len;
|
|
channel->ccw.cda = (__u32) __pa(iob);
|
|
}
|
|
|
|
static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel)
|
|
{
|
|
__u8 index;
|
|
|
|
QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "getbuff");
|
|
index = channel->io_buf_no;
|
|
do {
|
|
if (channel->iob[index].state == BUF_STATE_FREE) {
|
|
channel->iob[index].state = BUF_STATE_LOCKED;
|
|
channel->io_buf_no = (channel->io_buf_no + 1) %
|
|
QETH_CMD_BUFFER_NO;
|
|
memset(channel->iob[index].data, 0, QETH_BUFSIZE);
|
|
return channel->iob + index;
|
|
}
|
|
index = (index + 1) % QETH_CMD_BUFFER_NO;
|
|
} while (index != channel->io_buf_no);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void qeth_release_buffer(struct qeth_channel *channel,
|
|
struct qeth_cmd_buffer *iob)
|
|
{
|
|
unsigned long flags;
|
|
|
|
QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "relbuff");
|
|
spin_lock_irqsave(&channel->iob_lock, flags);
|
|
memset(iob->data, 0, QETH_BUFSIZE);
|
|
iob->state = BUF_STATE_FREE;
|
|
iob->callback = qeth_send_control_data_cb;
|
|
iob->rc = 0;
|
|
spin_unlock_irqrestore(&channel->iob_lock, flags);
|
|
wake_up(&channel->wait_q);
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_release_buffer);
|
|
|
|
static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel)
|
|
{
|
|
struct qeth_cmd_buffer *buffer = NULL;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&channel->iob_lock, flags);
|
|
buffer = __qeth_get_buffer(channel);
|
|
spin_unlock_irqrestore(&channel->iob_lock, flags);
|
|
return buffer;
|
|
}
|
|
|
|
struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *channel)
|
|
{
|
|
struct qeth_cmd_buffer *buffer;
|
|
wait_event(channel->wait_q,
|
|
((buffer = qeth_get_buffer(channel)) != NULL));
|
|
return buffer;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_wait_for_buffer);
|
|
|
|
void qeth_clear_cmd_buffers(struct qeth_channel *channel)
|
|
{
|
|
int cnt;
|
|
|
|
for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
|
|
qeth_release_buffer(channel, &channel->iob[cnt]);
|
|
channel->buf_no = 0;
|
|
channel->io_buf_no = 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers);
|
|
|
|
static void qeth_send_control_data_cb(struct qeth_channel *channel,
|
|
struct qeth_cmd_buffer *iob)
|
|
{
|
|
struct qeth_card *card;
|
|
struct qeth_reply *reply, *r;
|
|
struct qeth_ipa_cmd *cmd;
|
|
unsigned long flags;
|
|
int keep_reply;
|
|
int rc = 0;
|
|
|
|
card = CARD_FROM_CDEV(channel->ccwdev);
|
|
QETH_CARD_TEXT(card, 4, "sndctlcb");
|
|
rc = qeth_check_idx_response(card, iob->data);
|
|
switch (rc) {
|
|
case 0:
|
|
break;
|
|
case -EIO:
|
|
qeth_clear_ipacmd_list(card);
|
|
qeth_schedule_recovery(card);
|
|
/* fall through */
|
|
default:
|
|
goto out;
|
|
}
|
|
|
|
cmd = qeth_check_ipa_data(card, iob);
|
|
if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
|
|
goto out;
|
|
/*in case of OSN : check if cmd is set */
|
|
if (card->info.type == QETH_CARD_TYPE_OSN &&
|
|
cmd &&
|
|
cmd->hdr.command != IPA_CMD_STARTLAN &&
|
|
card->osn_info.assist_cb != NULL) {
|
|
card->osn_info.assist_cb(card->dev, cmd);
|
|
goto out;
|
|
}
|
|
|
|
spin_lock_irqsave(&card->lock, flags);
|
|
list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
|
|
if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
|
|
((cmd) && (reply->seqno == cmd->hdr.seqno))) {
|
|
qeth_get_reply(reply);
|
|
list_del_init(&reply->list);
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
|
keep_reply = 0;
|
|
if (reply->callback != NULL) {
|
|
if (cmd) {
|
|
reply->offset = (__u16)((char *)cmd -
|
|
(char *)iob->data);
|
|
keep_reply = reply->callback(card,
|
|
reply,
|
|
(unsigned long)cmd);
|
|
} else
|
|
keep_reply = reply->callback(card,
|
|
reply,
|
|
(unsigned long)iob);
|
|
}
|
|
if (cmd)
|
|
reply->rc = (u16) cmd->hdr.return_code;
|
|
else if (iob->rc)
|
|
reply->rc = iob->rc;
|
|
if (keep_reply) {
|
|
spin_lock_irqsave(&card->lock, flags);
|
|
list_add_tail(&reply->list,
|
|
&card->cmd_waiter_list);
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
|
} else {
|
|
atomic_inc(&reply->received);
|
|
wake_up(&reply->wait_q);
|
|
}
|
|
qeth_put_reply(reply);
|
|
goto out;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
|
out:
|
|
memcpy(&card->seqno.pdu_hdr_ack,
|
|
QETH_PDU_HEADER_SEQ_NO(iob->data),
|
|
QETH_SEQ_NO_LENGTH);
|
|
qeth_release_buffer(channel, iob);
|
|
}
|
|
|
|
static int qeth_setup_channel(struct qeth_channel *channel)
|
|
{
|
|
int cnt;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "setupch");
|
|
for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
|
|
channel->iob[cnt].data =
|
|
kzalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
|
|
if (channel->iob[cnt].data == NULL)
|
|
break;
|
|
channel->iob[cnt].state = BUF_STATE_FREE;
|
|
channel->iob[cnt].channel = channel;
|
|
channel->iob[cnt].callback = qeth_send_control_data_cb;
|
|
channel->iob[cnt].rc = 0;
|
|
}
|
|
if (cnt < QETH_CMD_BUFFER_NO) {
|
|
while (cnt-- > 0)
|
|
kfree(channel->iob[cnt].data);
|
|
return -ENOMEM;
|
|
}
|
|
channel->buf_no = 0;
|
|
channel->io_buf_no = 0;
|
|
atomic_set(&channel->irq_pending, 0);
|
|
spin_lock_init(&channel->iob_lock);
|
|
|
|
init_waitqueue_head(&channel->wait_q);
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_set_thread_start_bit(struct qeth_card *card,
|
|
unsigned long thread)
|
|
{
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&card->thread_mask_lock, flags);
|
|
if (!(card->thread_allowed_mask & thread) ||
|
|
(card->thread_start_mask & thread)) {
|
|
spin_unlock_irqrestore(&card->thread_mask_lock, flags);
|
|
return -EPERM;
|
|
}
|
|
card->thread_start_mask |= thread;
|
|
spin_unlock_irqrestore(&card->thread_mask_lock, flags);
|
|
return 0;
|
|
}
|
|
|
|
void qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
|
|
{
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&card->thread_mask_lock, flags);
|
|
card->thread_start_mask &= ~thread;
|
|
spin_unlock_irqrestore(&card->thread_mask_lock, flags);
|
|
wake_up(&card->wait_q);
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit);
|
|
|
|
void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
|
|
{
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&card->thread_mask_lock, flags);
|
|
card->thread_running_mask &= ~thread;
|
|
spin_unlock_irqrestore(&card->thread_mask_lock, flags);
|
|
wake_up(&card->wait_q);
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit);
|
|
|
|
static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
|
|
{
|
|
unsigned long flags;
|
|
int rc = 0;
|
|
|
|
spin_lock_irqsave(&card->thread_mask_lock, flags);
|
|
if (card->thread_start_mask & thread) {
|
|
if ((card->thread_allowed_mask & thread) &&
|
|
!(card->thread_running_mask & thread)) {
|
|
rc = 1;
|
|
card->thread_start_mask &= ~thread;
|
|
card->thread_running_mask |= thread;
|
|
} else
|
|
rc = -EPERM;
|
|
}
|
|
spin_unlock_irqrestore(&card->thread_mask_lock, flags);
|
|
return rc;
|
|
}
|
|
|
|
int qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
|
|
{
|
|
int rc = 0;
|
|
|
|
wait_event(card->wait_q,
|
|
(rc = __qeth_do_run_thread(card, thread)) >= 0);
|
|
return rc;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_do_run_thread);
|
|
|
|
void qeth_schedule_recovery(struct qeth_card *card)
|
|
{
|
|
QETH_CARD_TEXT(card, 2, "startrec");
|
|
if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
|
|
schedule_work(&card->kernel_thread_starter);
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_schedule_recovery);
|
|
|
|
static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
|
|
{
|
|
int dstat, cstat;
|
|
char *sense;
|
|
struct qeth_card *card;
|
|
|
|
sense = (char *) irb->ecw;
|
|
cstat = irb->scsw.cmd.cstat;
|
|
dstat = irb->scsw.cmd.dstat;
|
|
card = CARD_FROM_CDEV(cdev);
|
|
|
|
if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
|
|
SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
|
|
SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
|
|
QETH_CARD_TEXT(card, 2, "CGENCHK");
|
|
dev_warn(&cdev->dev, "The qeth device driver "
|
|
"failed to recover an error on the device\n");
|
|
QETH_DBF_MESSAGE(2, "%s check on device dstat=x%x, cstat=x%x\n",
|
|
dev_name(&cdev->dev), dstat, cstat);
|
|
print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET,
|
|
16, 1, irb, 64, 1);
|
|
return 1;
|
|
}
|
|
|
|
if (dstat & DEV_STAT_UNIT_CHECK) {
|
|
if (sense[SENSE_RESETTING_EVENT_BYTE] &
|
|
SENSE_RESETTING_EVENT_FLAG) {
|
|
QETH_CARD_TEXT(card, 2, "REVIND");
|
|
return 1;
|
|
}
|
|
if (sense[SENSE_COMMAND_REJECT_BYTE] &
|
|
SENSE_COMMAND_REJECT_FLAG) {
|
|
QETH_CARD_TEXT(card, 2, "CMDREJi");
|
|
return 1;
|
|
}
|
|
if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
|
|
QETH_CARD_TEXT(card, 2, "AFFE");
|
|
return 1;
|
|
}
|
|
if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
|
|
QETH_CARD_TEXT(card, 2, "ZEROSEN");
|
|
return 0;
|
|
}
|
|
QETH_CARD_TEXT(card, 2, "DGENCHK");
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static long __qeth_check_irb_error(struct ccw_device *cdev,
|
|
unsigned long intparm, struct irb *irb)
|
|
{
|
|
struct qeth_card *card;
|
|
|
|
card = CARD_FROM_CDEV(cdev);
|
|
|
|
if (!IS_ERR(irb))
|
|
return 0;
|
|
|
|
switch (PTR_ERR(irb)) {
|
|
case -EIO:
|
|
QETH_DBF_MESSAGE(2, "%s i/o-error on device\n",
|
|
dev_name(&cdev->dev));
|
|
QETH_CARD_TEXT(card, 2, "ckirberr");
|
|
QETH_CARD_TEXT_(card, 2, " rc%d", -EIO);
|
|
break;
|
|
case -ETIMEDOUT:
|
|
dev_warn(&cdev->dev, "A hardware operation timed out"
|
|
" on the device\n");
|
|
QETH_CARD_TEXT(card, 2, "ckirberr");
|
|
QETH_CARD_TEXT_(card, 2, " rc%d", -ETIMEDOUT);
|
|
if (intparm == QETH_RCD_PARM) {
|
|
if (card && (card->data.ccwdev == cdev)) {
|
|
card->data.state = CH_STATE_DOWN;
|
|
wake_up(&card->wait_q);
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
QETH_DBF_MESSAGE(2, "%s unknown error %ld on device\n",
|
|
dev_name(&cdev->dev), PTR_ERR(irb));
|
|
QETH_CARD_TEXT(card, 2, "ckirberr");
|
|
QETH_CARD_TEXT(card, 2, " rc???");
|
|
}
|
|
return PTR_ERR(irb);
|
|
}
|
|
|
|
static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
|
|
struct irb *irb)
|
|
{
|
|
int rc;
|
|
int cstat, dstat;
|
|
struct qeth_cmd_buffer *buffer;
|
|
struct qeth_channel *channel;
|
|
struct qeth_card *card;
|
|
struct qeth_cmd_buffer *iob;
|
|
__u8 index;
|
|
|
|
if (__qeth_check_irb_error(cdev, intparm, irb))
|
|
return;
|
|
cstat = irb->scsw.cmd.cstat;
|
|
dstat = irb->scsw.cmd.dstat;
|
|
|
|
card = CARD_FROM_CDEV(cdev);
|
|
if (!card)
|
|
return;
|
|
|
|
QETH_CARD_TEXT(card, 5, "irq");
|
|
|
|
if (card->read.ccwdev == cdev) {
|
|
channel = &card->read;
|
|
QETH_CARD_TEXT(card, 5, "read");
|
|
} else if (card->write.ccwdev == cdev) {
|
|
channel = &card->write;
|
|
QETH_CARD_TEXT(card, 5, "write");
|
|
} else {
|
|
channel = &card->data;
|
|
QETH_CARD_TEXT(card, 5, "data");
|
|
}
|
|
atomic_set(&channel->irq_pending, 0);
|
|
|
|
if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC))
|
|
channel->state = CH_STATE_STOPPED;
|
|
|
|
if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC))
|
|
channel->state = CH_STATE_HALTED;
|
|
|
|
/*let's wake up immediately on data channel*/
|
|
if ((channel == &card->data) && (intparm != 0) &&
|
|
(intparm != QETH_RCD_PARM))
|
|
goto out;
|
|
|
|
if (intparm == QETH_CLEAR_CHANNEL_PARM) {
|
|
QETH_CARD_TEXT(card, 6, "clrchpar");
|
|
/* we don't have to handle this further */
|
|
intparm = 0;
|
|
}
|
|
if (intparm == QETH_HALT_CHANNEL_PARM) {
|
|
QETH_CARD_TEXT(card, 6, "hltchpar");
|
|
/* we don't have to handle this further */
|
|
intparm = 0;
|
|
}
|
|
if ((dstat & DEV_STAT_UNIT_EXCEP) ||
|
|
(dstat & DEV_STAT_UNIT_CHECK) ||
|
|
(cstat)) {
|
|
if (irb->esw.esw0.erw.cons) {
|
|
dev_warn(&channel->ccwdev->dev,
|
|
"The qeth device driver failed to recover "
|
|
"an error on the device\n");
|
|
QETH_DBF_MESSAGE(2, "%s sense data available. cstat "
|
|
"0x%X dstat 0x%X\n",
|
|
dev_name(&channel->ccwdev->dev), cstat, dstat);
|
|
print_hex_dump(KERN_WARNING, "qeth: irb ",
|
|
DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1);
|
|
print_hex_dump(KERN_WARNING, "qeth: sense data ",
|
|
DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1);
|
|
}
|
|
if (intparm == QETH_RCD_PARM) {
|
|
channel->state = CH_STATE_DOWN;
|
|
goto out;
|
|
}
|
|
rc = qeth_get_problem(cdev, irb);
|
|
if (rc) {
|
|
qeth_clear_ipacmd_list(card);
|
|
qeth_schedule_recovery(card);
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
if (intparm == QETH_RCD_PARM) {
|
|
channel->state = CH_STATE_RCD_DONE;
|
|
goto out;
|
|
}
|
|
if (intparm) {
|
|
buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
|
|
buffer->state = BUF_STATE_PROCESSED;
|
|
}
|
|
if (channel == &card->data)
|
|
return;
|
|
if (channel == &card->read &&
|
|
channel->state == CH_STATE_UP)
|
|
qeth_issue_next_read(card);
|
|
|
|
iob = channel->iob;
|
|
index = channel->buf_no;
|
|
while (iob[index].state == BUF_STATE_PROCESSED) {
|
|
if (iob[index].callback != NULL)
|
|
iob[index].callback(channel, iob + index);
|
|
|
|
index = (index + 1) % QETH_CMD_BUFFER_NO;
|
|
}
|
|
channel->buf_no = index;
|
|
out:
|
|
wake_up(&card->wait_q);
|
|
return;
|
|
}
|
|
|
|
static void qeth_notify_skbs(struct qeth_qdio_out_q *q,
|
|
struct qeth_qdio_out_buffer *buf,
|
|
enum iucv_tx_notify notification)
|
|
{
|
|
struct sk_buff *skb;
|
|
|
|
if (skb_queue_empty(&buf->skb_list))
|
|
goto out;
|
|
skb = skb_peek(&buf->skb_list);
|
|
while (skb) {
|
|
QETH_CARD_TEXT_(q->card, 5, "skbn%d", notification);
|
|
QETH_CARD_TEXT_(q->card, 5, "%lx", (long) skb);
|
|
if (skb->protocol == ETH_P_AF_IUCV) {
|
|
if (skb->sk) {
|
|
struct iucv_sock *iucv = iucv_sk(skb->sk);
|
|
iucv->sk_txnotify(skb, notification);
|
|
}
|
|
}
|
|
if (skb_queue_is_last(&buf->skb_list, skb))
|
|
skb = NULL;
|
|
else
|
|
skb = skb_queue_next(&buf->skb_list, skb);
|
|
}
|
|
out:
|
|
return;
|
|
}
|
|
|
|
static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf)
|
|
{
|
|
struct sk_buff *skb;
|
|
struct iucv_sock *iucv;
|
|
int notify_general_error = 0;
|
|
|
|
if (atomic_read(&buf->state) == QETH_QDIO_BUF_PENDING)
|
|
notify_general_error = 1;
|
|
|
|
/* release may never happen from within CQ tasklet scope */
|
|
WARN_ON_ONCE(atomic_read(&buf->state) == QETH_QDIO_BUF_IN_CQ);
|
|
|
|
skb = skb_dequeue(&buf->skb_list);
|
|
while (skb) {
|
|
QETH_CARD_TEXT(buf->q->card, 5, "skbr");
|
|
QETH_CARD_TEXT_(buf->q->card, 5, "%lx", (long) skb);
|
|
if (notify_general_error && skb->protocol == ETH_P_AF_IUCV) {
|
|
if (skb->sk) {
|
|
iucv = iucv_sk(skb->sk);
|
|
iucv->sk_txnotify(skb, TX_NOTIFY_GENERALERROR);
|
|
}
|
|
}
|
|
atomic_dec(&skb->users);
|
|
dev_kfree_skb_any(skb);
|
|
skb = skb_dequeue(&buf->skb_list);
|
|
}
|
|
}
|
|
|
|
static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
|
|
struct qeth_qdio_out_buffer *buf,
|
|
enum qeth_qdio_buffer_states newbufstate)
|
|
{
|
|
int i;
|
|
|
|
/* is PCI flag set on buffer? */
|
|
if (buf->buffer->element[0].sflags & SBAL_SFLAGS0_PCI_REQ)
|
|
atomic_dec(&queue->set_pci_flags_count);
|
|
|
|
if (newbufstate == QETH_QDIO_BUF_EMPTY) {
|
|
qeth_release_skbs(buf);
|
|
}
|
|
for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) {
|
|
if (buf->buffer->element[i].addr && buf->is_header[i])
|
|
kmem_cache_free(qeth_core_header_cache,
|
|
buf->buffer->element[i].addr);
|
|
buf->is_header[i] = 0;
|
|
buf->buffer->element[i].length = 0;
|
|
buf->buffer->element[i].addr = NULL;
|
|
buf->buffer->element[i].eflags = 0;
|
|
buf->buffer->element[i].sflags = 0;
|
|
}
|
|
buf->buffer->element[15].eflags = 0;
|
|
buf->buffer->element[15].sflags = 0;
|
|
buf->next_element_to_fill = 0;
|
|
atomic_set(&buf->state, newbufstate);
|
|
}
|
|
|
|
static void qeth_clear_outq_buffers(struct qeth_qdio_out_q *q, int free)
|
|
{
|
|
int j;
|
|
|
|
for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
|
|
if (!q->bufs[j])
|
|
continue;
|
|
qeth_cleanup_handled_pending(q, j, 1);
|
|
qeth_clear_output_buffer(q, q->bufs[j], QETH_QDIO_BUF_EMPTY);
|
|
if (free) {
|
|
kmem_cache_free(qeth_qdio_outbuf_cache, q->bufs[j]);
|
|
q->bufs[j] = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
void qeth_clear_qdio_buffers(struct qeth_card *card)
|
|
{
|
|
int i;
|
|
|
|
QETH_CARD_TEXT(card, 2, "clearqdbf");
|
|
/* clear outbound buffers to free skbs */
|
|
for (i = 0; i < card->qdio.no_out_queues; ++i) {
|
|
if (card->qdio.out_qs[i]) {
|
|
qeth_clear_outq_buffers(card->qdio.out_qs[i], 0);
|
|
}
|
|
}
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers);
|
|
|
|
static void qeth_free_buffer_pool(struct qeth_card *card)
|
|
{
|
|
struct qeth_buffer_pool_entry *pool_entry, *tmp;
|
|
int i = 0;
|
|
list_for_each_entry_safe(pool_entry, tmp,
|
|
&card->qdio.init_pool.entry_list, init_list){
|
|
for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
|
|
free_page((unsigned long)pool_entry->elements[i]);
|
|
list_del(&pool_entry->init_list);
|
|
kfree(pool_entry);
|
|
}
|
|
}
|
|
|
|
static void qeth_free_qdio_buffers(struct qeth_card *card)
|
|
{
|
|
int i, j;
|
|
|
|
if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
|
|
QETH_QDIO_UNINITIALIZED)
|
|
return;
|
|
|
|
qeth_free_cq(card);
|
|
cancel_delayed_work_sync(&card->buffer_reclaim_work);
|
|
for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
|
|
if (card->qdio.in_q->bufs[j].rx_skb)
|
|
dev_kfree_skb_any(card->qdio.in_q->bufs[j].rx_skb);
|
|
}
|
|
kfree(card->qdio.in_q);
|
|
card->qdio.in_q = NULL;
|
|
/* inbound buffer pool */
|
|
qeth_free_buffer_pool(card);
|
|
/* free outbound qdio_qs */
|
|
if (card->qdio.out_qs) {
|
|
for (i = 0; i < card->qdio.no_out_queues; ++i) {
|
|
qeth_clear_outq_buffers(card->qdio.out_qs[i], 1);
|
|
kfree(card->qdio.out_qs[i]);
|
|
}
|
|
kfree(card->qdio.out_qs);
|
|
card->qdio.out_qs = NULL;
|
|
}
|
|
}
|
|
|
|
static void qeth_clean_channel(struct qeth_channel *channel)
|
|
{
|
|
int cnt;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "freech");
|
|
for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
|
|
kfree(channel->iob[cnt].data);
|
|
}
|
|
|
|
static void qeth_set_single_write_queues(struct qeth_card *card)
|
|
{
|
|
if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) &&
|
|
(card->qdio.no_out_queues == 4))
|
|
qeth_free_qdio_buffers(card);
|
|
|
|
card->qdio.no_out_queues = 1;
|
|
if (card->qdio.default_out_queue != 0)
|
|
dev_info(&card->gdev->dev, "Priority Queueing not supported\n");
|
|
|
|
card->qdio.default_out_queue = 0;
|
|
}
|
|
|
|
static void qeth_set_multiple_write_queues(struct qeth_card *card)
|
|
{
|
|
if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) &&
|
|
(card->qdio.no_out_queues == 1)) {
|
|
qeth_free_qdio_buffers(card);
|
|
card->qdio.default_out_queue = 2;
|
|
}
|
|
card->qdio.no_out_queues = 4;
|
|
}
|
|
|
|
static void qeth_update_from_chp_desc(struct qeth_card *card)
|
|
{
|
|
struct ccw_device *ccwdev;
|
|
struct channelPath_dsc {
|
|
u8 flags;
|
|
u8 lsn;
|
|
u8 desc;
|
|
u8 chpid;
|
|
u8 swla;
|
|
u8 zeroes;
|
|
u8 chla;
|
|
u8 chpp;
|
|
} *chp_dsc;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "chp_desc");
|
|
|
|
ccwdev = card->data.ccwdev;
|
|
chp_dsc = ccw_device_get_chp_desc(ccwdev, 0);
|
|
if (!chp_dsc)
|
|
goto out;
|
|
|
|
card->info.func_level = 0x4100 + chp_dsc->desc;
|
|
if (card->info.type == QETH_CARD_TYPE_IQD)
|
|
goto out;
|
|
|
|
/* CHPP field bit 6 == 1 -> single queue */
|
|
if ((chp_dsc->chpp & 0x02) == 0x02)
|
|
qeth_set_single_write_queues(card);
|
|
else
|
|
qeth_set_multiple_write_queues(card);
|
|
out:
|
|
kfree(chp_dsc);
|
|
QETH_DBF_TEXT_(SETUP, 2, "nr:%x", card->qdio.no_out_queues);
|
|
QETH_DBF_TEXT_(SETUP, 2, "lvl:%02x", card->info.func_level);
|
|
}
|
|
|
|
static void qeth_init_qdio_info(struct qeth_card *card)
|
|
{
|
|
QETH_DBF_TEXT(SETUP, 4, "intqdinf");
|
|
atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
|
|
/* inbound */
|
|
card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
|
|
if (card->info.type == QETH_CARD_TYPE_IQD)
|
|
card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_HSDEFAULT;
|
|
else
|
|
card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
|
|
card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
|
|
INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
|
|
INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
|
|
}
|
|
|
|
static void qeth_set_intial_options(struct qeth_card *card)
|
|
{
|
|
card->options.route4.type = NO_ROUTER;
|
|
card->options.route6.type = NO_ROUTER;
|
|
card->options.fake_broadcast = 0;
|
|
card->options.add_hhlen = DEFAULT_ADD_HHLEN;
|
|
card->options.performance_stats = 0;
|
|
card->options.rx_sg_cb = QETH_RX_SG_CB;
|
|
card->options.isolation = ISOLATION_MODE_NONE;
|
|
card->options.cq = QETH_CQ_DISABLED;
|
|
}
|
|
|
|
static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
|
|
{
|
|
unsigned long flags;
|
|
int rc = 0;
|
|
|
|
spin_lock_irqsave(&card->thread_mask_lock, flags);
|
|
QETH_CARD_TEXT_(card, 4, " %02x%02x%02x",
|
|
(u8) card->thread_start_mask,
|
|
(u8) card->thread_allowed_mask,
|
|
(u8) card->thread_running_mask);
|
|
rc = (card->thread_start_mask & thread);
|
|
spin_unlock_irqrestore(&card->thread_mask_lock, flags);
|
|
return rc;
|
|
}
|
|
|
|
static void qeth_start_kernel_thread(struct work_struct *work)
|
|
{
|
|
struct task_struct *ts;
|
|
struct qeth_card *card = container_of(work, struct qeth_card,
|
|
kernel_thread_starter);
|
|
QETH_CARD_TEXT(card , 2, "strthrd");
|
|
|
|
if (card->read.state != CH_STATE_UP &&
|
|
card->write.state != CH_STATE_UP)
|
|
return;
|
|
if (qeth_do_start_thread(card, QETH_RECOVER_THREAD)) {
|
|
ts = kthread_run(card->discipline->recover, (void *)card,
|
|
"qeth_recover");
|
|
if (IS_ERR(ts)) {
|
|
qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
|
|
qeth_clear_thread_running_bit(card,
|
|
QETH_RECOVER_THREAD);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int qeth_setup_card(struct qeth_card *card)
|
|
{
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "setupcrd");
|
|
QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
|
|
|
|
card->read.state = CH_STATE_DOWN;
|
|
card->write.state = CH_STATE_DOWN;
|
|
card->data.state = CH_STATE_DOWN;
|
|
card->state = CARD_STATE_DOWN;
|
|
card->lan_online = 0;
|
|
card->read_or_write_problem = 0;
|
|
card->dev = NULL;
|
|
spin_lock_init(&card->vlanlock);
|
|
spin_lock_init(&card->mclock);
|
|
spin_lock_init(&card->lock);
|
|
spin_lock_init(&card->ip_lock);
|
|
spin_lock_init(&card->thread_mask_lock);
|
|
mutex_init(&card->conf_mutex);
|
|
mutex_init(&card->discipline_mutex);
|
|
card->thread_start_mask = 0;
|
|
card->thread_allowed_mask = 0;
|
|
card->thread_running_mask = 0;
|
|
INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
|
|
INIT_LIST_HEAD(&card->ip_list);
|
|
INIT_LIST_HEAD(card->ip_tbd_list);
|
|
INIT_LIST_HEAD(&card->cmd_waiter_list);
|
|
init_waitqueue_head(&card->wait_q);
|
|
/* initial options */
|
|
qeth_set_intial_options(card);
|
|
/* IP address takeover */
|
|
INIT_LIST_HEAD(&card->ipato.entries);
|
|
card->ipato.enabled = 0;
|
|
card->ipato.invert4 = 0;
|
|
card->ipato.invert6 = 0;
|
|
/* init QDIO stuff */
|
|
qeth_init_qdio_info(card);
|
|
INIT_DELAYED_WORK(&card->buffer_reclaim_work, qeth_buffer_reclaim_work);
|
|
INIT_WORK(&card->close_dev_work, qeth_close_dev_handler);
|
|
return 0;
|
|
}
|
|
|
|
static void qeth_core_sl_print(struct seq_file *m, struct service_level *slr)
|
|
{
|
|
struct qeth_card *card = container_of(slr, struct qeth_card,
|
|
qeth_service_level);
|
|
if (card->info.mcl_level[0])
|
|
seq_printf(m, "qeth: %s firmware level %s\n",
|
|
CARD_BUS_ID(card), card->info.mcl_level);
|
|
}
|
|
|
|
static struct qeth_card *qeth_alloc_card(void)
|
|
{
|
|
struct qeth_card *card;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "alloccrd");
|
|
card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
|
|
if (!card)
|
|
goto out;
|
|
QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
|
|
card->ip_tbd_list = kzalloc(sizeof(struct list_head), GFP_KERNEL);
|
|
if (!card->ip_tbd_list) {
|
|
QETH_DBF_TEXT(SETUP, 0, "iptbdnom");
|
|
goto out_card;
|
|
}
|
|
if (qeth_setup_channel(&card->read))
|
|
goto out_ip;
|
|
if (qeth_setup_channel(&card->write))
|
|
goto out_channel;
|
|
card->options.layer2 = -1;
|
|
card->qeth_service_level.seq_print = qeth_core_sl_print;
|
|
register_service_level(&card->qeth_service_level);
|
|
return card;
|
|
|
|
out_channel:
|
|
qeth_clean_channel(&card->read);
|
|
out_ip:
|
|
kfree(card->ip_tbd_list);
|
|
out_card:
|
|
kfree(card);
|
|
out:
|
|
return NULL;
|
|
}
|
|
|
|
static int qeth_determine_card_type(struct qeth_card *card)
|
|
{
|
|
int i = 0;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "detcdtyp");
|
|
|
|
card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
|
|
card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
|
|
while (known_devices[i][QETH_DEV_MODEL_IND]) {
|
|
if ((CARD_RDEV(card)->id.dev_type ==
|
|
known_devices[i][QETH_DEV_TYPE_IND]) &&
|
|
(CARD_RDEV(card)->id.dev_model ==
|
|
known_devices[i][QETH_DEV_MODEL_IND])) {
|
|
card->info.type = known_devices[i][QETH_DEV_MODEL_IND];
|
|
card->qdio.no_out_queues =
|
|
known_devices[i][QETH_QUEUE_NO_IND];
|
|
card->qdio.no_in_queues = 1;
|
|
card->info.is_multicast_different =
|
|
known_devices[i][QETH_MULTICAST_IND];
|
|
qeth_update_from_chp_desc(card);
|
|
return 0;
|
|
}
|
|
i++;
|
|
}
|
|
card->info.type = QETH_CARD_TYPE_UNKNOWN;
|
|
dev_err(&card->gdev->dev, "The adapter hardware is of an "
|
|
"unknown type\n");
|
|
return -ENOENT;
|
|
}
|
|
|
|
static int qeth_clear_channel(struct qeth_channel *channel)
|
|
{
|
|
unsigned long flags;
|
|
struct qeth_card *card;
|
|
int rc;
|
|
|
|
card = CARD_FROM_CDEV(channel->ccwdev);
|
|
QETH_CARD_TEXT(card, 3, "clearch");
|
|
spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
|
|
rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
|
|
spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
|
|
|
|
if (rc)
|
|
return rc;
|
|
rc = wait_event_interruptible_timeout(card->wait_q,
|
|
channel->state == CH_STATE_STOPPED, QETH_TIMEOUT);
|
|
if (rc == -ERESTARTSYS)
|
|
return rc;
|
|
if (channel->state != CH_STATE_STOPPED)
|
|
return -ETIME;
|
|
channel->state = CH_STATE_DOWN;
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_halt_channel(struct qeth_channel *channel)
|
|
{
|
|
unsigned long flags;
|
|
struct qeth_card *card;
|
|
int rc;
|
|
|
|
card = CARD_FROM_CDEV(channel->ccwdev);
|
|
QETH_CARD_TEXT(card, 3, "haltch");
|
|
spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
|
|
rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
|
|
spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
|
|
|
|
if (rc)
|
|
return rc;
|
|
rc = wait_event_interruptible_timeout(card->wait_q,
|
|
channel->state == CH_STATE_HALTED, QETH_TIMEOUT);
|
|
if (rc == -ERESTARTSYS)
|
|
return rc;
|
|
if (channel->state != CH_STATE_HALTED)
|
|
return -ETIME;
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_halt_channels(struct qeth_card *card)
|
|
{
|
|
int rc1 = 0, rc2 = 0, rc3 = 0;
|
|
|
|
QETH_CARD_TEXT(card, 3, "haltchs");
|
|
rc1 = qeth_halt_channel(&card->read);
|
|
rc2 = qeth_halt_channel(&card->write);
|
|
rc3 = qeth_halt_channel(&card->data);
|
|
if (rc1)
|
|
return rc1;
|
|
if (rc2)
|
|
return rc2;
|
|
return rc3;
|
|
}
|
|
|
|
static int qeth_clear_channels(struct qeth_card *card)
|
|
{
|
|
int rc1 = 0, rc2 = 0, rc3 = 0;
|
|
|
|
QETH_CARD_TEXT(card, 3, "clearchs");
|
|
rc1 = qeth_clear_channel(&card->read);
|
|
rc2 = qeth_clear_channel(&card->write);
|
|
rc3 = qeth_clear_channel(&card->data);
|
|
if (rc1)
|
|
return rc1;
|
|
if (rc2)
|
|
return rc2;
|
|
return rc3;
|
|
}
|
|
|
|
static int qeth_clear_halt_card(struct qeth_card *card, int halt)
|
|
{
|
|
int rc = 0;
|
|
|
|
QETH_CARD_TEXT(card, 3, "clhacrd");
|
|
|
|
if (halt)
|
|
rc = qeth_halt_channels(card);
|
|
if (rc)
|
|
return rc;
|
|
return qeth_clear_channels(card);
|
|
}
|
|
|
|
int qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
|
|
{
|
|
int rc = 0;
|
|
|
|
QETH_CARD_TEXT(card, 3, "qdioclr");
|
|
switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
|
|
QETH_QDIO_CLEANING)) {
|
|
case QETH_QDIO_ESTABLISHED:
|
|
if (card->info.type == QETH_CARD_TYPE_IQD)
|
|
rc = qdio_shutdown(CARD_DDEV(card),
|
|
QDIO_FLAG_CLEANUP_USING_HALT);
|
|
else
|
|
rc = qdio_shutdown(CARD_DDEV(card),
|
|
QDIO_FLAG_CLEANUP_USING_CLEAR);
|
|
if (rc)
|
|
QETH_CARD_TEXT_(card, 3, "1err%d", rc);
|
|
atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
|
|
break;
|
|
case QETH_QDIO_CLEANING:
|
|
return rc;
|
|
default:
|
|
break;
|
|
}
|
|
rc = qeth_clear_halt_card(card, use_halt);
|
|
if (rc)
|
|
QETH_CARD_TEXT_(card, 3, "2err%d", rc);
|
|
card->state = CARD_STATE_DOWN;
|
|
return rc;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_qdio_clear_card);
|
|
|
|
static int qeth_read_conf_data(struct qeth_card *card, void **buffer,
|
|
int *length)
|
|
{
|
|
struct ciw *ciw;
|
|
char *rcd_buf;
|
|
int ret;
|
|
struct qeth_channel *channel = &card->data;
|
|
unsigned long flags;
|
|
|
|
/*
|
|
* scan for RCD command in extended SenseID data
|
|
*/
|
|
ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD);
|
|
if (!ciw || ciw->cmd == 0)
|
|
return -EOPNOTSUPP;
|
|
rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA);
|
|
if (!rcd_buf)
|
|
return -ENOMEM;
|
|
|
|
channel->ccw.cmd_code = ciw->cmd;
|
|
channel->ccw.cda = (__u32) __pa(rcd_buf);
|
|
channel->ccw.count = ciw->count;
|
|
channel->ccw.flags = CCW_FLAG_SLI;
|
|
channel->state = CH_STATE_RCD;
|
|
spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
|
|
ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
|
|
QETH_RCD_PARM, LPM_ANYPATH, 0,
|
|
QETH_RCD_TIMEOUT);
|
|
spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
|
|
if (!ret)
|
|
wait_event(card->wait_q,
|
|
(channel->state == CH_STATE_RCD_DONE ||
|
|
channel->state == CH_STATE_DOWN));
|
|
if (channel->state == CH_STATE_DOWN)
|
|
ret = -EIO;
|
|
else
|
|
channel->state = CH_STATE_DOWN;
|
|
if (ret) {
|
|
kfree(rcd_buf);
|
|
*buffer = NULL;
|
|
*length = 0;
|
|
} else {
|
|
*length = ciw->count;
|
|
*buffer = rcd_buf;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static void qeth_configure_unitaddr(struct qeth_card *card, char *prcd)
|
|
{
|
|
QETH_DBF_TEXT(SETUP, 2, "cfgunit");
|
|
card->info.chpid = prcd[30];
|
|
card->info.unit_addr2 = prcd[31];
|
|
card->info.cula = prcd[63];
|
|
card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
|
|
(prcd[0x11] == _ascebc['M']));
|
|
}
|
|
|
|
static void qeth_configure_blkt_default(struct qeth_card *card, char *prcd)
|
|
{
|
|
QETH_DBF_TEXT(SETUP, 2, "cfgblkt");
|
|
|
|
if (prcd[74] == 0xF0 && prcd[75] == 0xF0 &&
|
|
prcd[76] >= 0xF1 && prcd[76] <= 0xF4) {
|
|
card->info.blkt.time_total = 0;
|
|
card->info.blkt.inter_packet = 0;
|
|
card->info.blkt.inter_packet_jumbo = 0;
|
|
} else {
|
|
card->info.blkt.time_total = 250;
|
|
card->info.blkt.inter_packet = 5;
|
|
card->info.blkt.inter_packet_jumbo = 15;
|
|
}
|
|
}
|
|
|
|
static void qeth_init_tokens(struct qeth_card *card)
|
|
{
|
|
card->token.issuer_rm_w = 0x00010103UL;
|
|
card->token.cm_filter_w = 0x00010108UL;
|
|
card->token.cm_connection_w = 0x0001010aUL;
|
|
card->token.ulp_filter_w = 0x0001010bUL;
|
|
card->token.ulp_connection_w = 0x0001010dUL;
|
|
}
|
|
|
|
static void qeth_init_func_level(struct qeth_card *card)
|
|
{
|
|
switch (card->info.type) {
|
|
case QETH_CARD_TYPE_IQD:
|
|
card->info.func_level = QETH_IDX_FUNC_LEVEL_IQD;
|
|
break;
|
|
case QETH_CARD_TYPE_OSD:
|
|
case QETH_CARD_TYPE_OSN:
|
|
card->info.func_level = QETH_IDX_FUNC_LEVEL_OSD;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int qeth_idx_activate_get_answer(struct qeth_channel *channel,
|
|
void (*idx_reply_cb)(struct qeth_channel *,
|
|
struct qeth_cmd_buffer *))
|
|
{
|
|
struct qeth_cmd_buffer *iob;
|
|
unsigned long flags;
|
|
int rc;
|
|
struct qeth_card *card;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "idxanswr");
|
|
card = CARD_FROM_CDEV(channel->ccwdev);
|
|
iob = qeth_get_buffer(channel);
|
|
iob->callback = idx_reply_cb;
|
|
memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
|
|
channel->ccw.count = QETH_BUFSIZE;
|
|
channel->ccw.cda = (__u32) __pa(iob->data);
|
|
|
|
wait_event(card->wait_q,
|
|
atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
|
|
QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
|
|
spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
|
|
rc = ccw_device_start(channel->ccwdev,
|
|
&channel->ccw, (addr_t) iob, 0, 0);
|
|
spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
|
|
|
|
if (rc) {
|
|
QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc);
|
|
QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
|
|
atomic_set(&channel->irq_pending, 0);
|
|
wake_up(&card->wait_q);
|
|
return rc;
|
|
}
|
|
rc = wait_event_interruptible_timeout(card->wait_q,
|
|
channel->state == CH_STATE_UP, QETH_TIMEOUT);
|
|
if (rc == -ERESTARTSYS)
|
|
return rc;
|
|
if (channel->state != CH_STATE_UP) {
|
|
rc = -ETIME;
|
|
QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
|
|
qeth_clear_cmd_buffers(channel);
|
|
} else
|
|
rc = 0;
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_idx_activate_channel(struct qeth_channel *channel,
|
|
void (*idx_reply_cb)(struct qeth_channel *,
|
|
struct qeth_cmd_buffer *))
|
|
{
|
|
struct qeth_card *card;
|
|
struct qeth_cmd_buffer *iob;
|
|
unsigned long flags;
|
|
__u16 temp;
|
|
__u8 tmp;
|
|
int rc;
|
|
struct ccw_dev_id temp_devid;
|
|
|
|
card = CARD_FROM_CDEV(channel->ccwdev);
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "idxactch");
|
|
|
|
iob = qeth_get_buffer(channel);
|
|
iob->callback = idx_reply_cb;
|
|
memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
|
|
channel->ccw.count = IDX_ACTIVATE_SIZE;
|
|
channel->ccw.cda = (__u32) __pa(iob->data);
|
|
if (channel == &card->write) {
|
|
memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
|
|
memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
|
|
&card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
|
|
card->seqno.trans_hdr++;
|
|
} else {
|
|
memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
|
|
memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
|
|
&card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
|
|
}
|
|
tmp = ((__u8)card->info.portno) | 0x80;
|
|
memcpy(QETH_IDX_ACT_PNO(iob->data), &tmp, 1);
|
|
memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
|
|
&card->token.issuer_rm_w, QETH_MPC_TOKEN_LENGTH);
|
|
memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
|
|
&card->info.func_level, sizeof(__u16));
|
|
ccw_device_get_id(CARD_DDEV(card), &temp_devid);
|
|
memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp_devid.devno, 2);
|
|
temp = (card->info.cula << 8) + card->info.unit_addr2;
|
|
memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
|
|
|
|
wait_event(card->wait_q,
|
|
atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
|
|
QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
|
|
spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
|
|
rc = ccw_device_start(channel->ccwdev,
|
|
&channel->ccw, (addr_t) iob, 0, 0);
|
|
spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
|
|
|
|
if (rc) {
|
|
QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n",
|
|
rc);
|
|
QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
|
|
atomic_set(&channel->irq_pending, 0);
|
|
wake_up(&card->wait_q);
|
|
return rc;
|
|
}
|
|
rc = wait_event_interruptible_timeout(card->wait_q,
|
|
channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
|
|
if (rc == -ERESTARTSYS)
|
|
return rc;
|
|
if (channel->state != CH_STATE_ACTIVATING) {
|
|
dev_warn(&channel->ccwdev->dev, "The qeth device driver"
|
|
" failed to recover an error on the device\n");
|
|
QETH_DBF_MESSAGE(2, "%s IDX activate timed out\n",
|
|
dev_name(&channel->ccwdev->dev));
|
|
QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME);
|
|
qeth_clear_cmd_buffers(channel);
|
|
return -ETIME;
|
|
}
|
|
return qeth_idx_activate_get_answer(channel, idx_reply_cb);
|
|
}
|
|
|
|
static int qeth_peer_func_level(int level)
|
|
{
|
|
if ((level & 0xff) == 8)
|
|
return (level & 0xff) + 0x400;
|
|
if (((level >> 8) & 3) == 1)
|
|
return (level & 0xff) + 0x200;
|
|
return level;
|
|
}
|
|
|
|
static void qeth_idx_write_cb(struct qeth_channel *channel,
|
|
struct qeth_cmd_buffer *iob)
|
|
{
|
|
struct qeth_card *card;
|
|
__u16 temp;
|
|
|
|
QETH_DBF_TEXT(SETUP , 2, "idxwrcb");
|
|
|
|
if (channel->state == CH_STATE_DOWN) {
|
|
channel->state = CH_STATE_ACTIVATING;
|
|
goto out;
|
|
}
|
|
card = CARD_FROM_CDEV(channel->ccwdev);
|
|
|
|
if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
|
|
if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == QETH_IDX_ACT_ERR_EXCL)
|
|
dev_err(&card->write.ccwdev->dev,
|
|
"The adapter is used exclusively by another "
|
|
"host\n");
|
|
else
|
|
QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel:"
|
|
" negative reply\n",
|
|
dev_name(&card->write.ccwdev->dev));
|
|
goto out;
|
|
}
|
|
memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
|
|
if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
|
|
QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel: "
|
|
"function level mismatch (sent: 0x%x, received: "
|
|
"0x%x)\n", dev_name(&card->write.ccwdev->dev),
|
|
card->info.func_level, temp);
|
|
goto out;
|
|
}
|
|
channel->state = CH_STATE_UP;
|
|
out:
|
|
qeth_release_buffer(channel, iob);
|
|
}
|
|
|
|
static void qeth_idx_read_cb(struct qeth_channel *channel,
|
|
struct qeth_cmd_buffer *iob)
|
|
{
|
|
struct qeth_card *card;
|
|
__u16 temp;
|
|
|
|
QETH_DBF_TEXT(SETUP , 2, "idxrdcb");
|
|
if (channel->state == CH_STATE_DOWN) {
|
|
channel->state = CH_STATE_ACTIVATING;
|
|
goto out;
|
|
}
|
|
|
|
card = CARD_FROM_CDEV(channel->ccwdev);
|
|
if (qeth_check_idx_response(card, iob->data))
|
|
goto out;
|
|
|
|
if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
|
|
switch (QETH_IDX_ACT_CAUSE_CODE(iob->data)) {
|
|
case QETH_IDX_ACT_ERR_EXCL:
|
|
dev_err(&card->write.ccwdev->dev,
|
|
"The adapter is used exclusively by another "
|
|
"host\n");
|
|
break;
|
|
case QETH_IDX_ACT_ERR_AUTH:
|
|
case QETH_IDX_ACT_ERR_AUTH_USER:
|
|
dev_err(&card->read.ccwdev->dev,
|
|
"Setting the device online failed because of "
|
|
"insufficient authorization\n");
|
|
break;
|
|
default:
|
|
QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel:"
|
|
" negative reply\n",
|
|
dev_name(&card->read.ccwdev->dev));
|
|
}
|
|
QETH_CARD_TEXT_(card, 2, "idxread%c",
|
|
QETH_IDX_ACT_CAUSE_CODE(iob->data));
|
|
goto out;
|
|
}
|
|
|
|
/**
|
|
* * temporary fix for microcode bug
|
|
* * to revert it,replace OR by AND
|
|
* */
|
|
if ((!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
|
|
(card->info.type == QETH_CARD_TYPE_OSD))
|
|
card->info.portname_required = 1;
|
|
|
|
memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
|
|
if (temp != qeth_peer_func_level(card->info.func_level)) {
|
|
QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel: function "
|
|
"level mismatch (sent: 0x%x, received: 0x%x)\n",
|
|
dev_name(&card->read.ccwdev->dev),
|
|
card->info.func_level, temp);
|
|
goto out;
|
|
}
|
|
memcpy(&card->token.issuer_rm_r,
|
|
QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
|
|
QETH_MPC_TOKEN_LENGTH);
|
|
memcpy(&card->info.mcl_level[0],
|
|
QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
|
|
channel->state = CH_STATE_UP;
|
|
out:
|
|
qeth_release_buffer(channel, iob);
|
|
}
|
|
|
|
void qeth_prepare_control_data(struct qeth_card *card, int len,
|
|
struct qeth_cmd_buffer *iob)
|
|
{
|
|
qeth_setup_ccw(&card->write, iob->data, len);
|
|
iob->callback = qeth_release_buffer;
|
|
|
|
memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
|
|
&card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
|
|
card->seqno.trans_hdr++;
|
|
memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
|
|
&card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
|
|
card->seqno.pdu_hdr++;
|
|
memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
|
|
&card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
|
|
QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_prepare_control_data);
|
|
|
|
int qeth_send_control_data(struct qeth_card *card, int len,
|
|
struct qeth_cmd_buffer *iob,
|
|
int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
|
|
unsigned long),
|
|
void *reply_param)
|
|
{
|
|
int rc;
|
|
unsigned long flags;
|
|
struct qeth_reply *reply = NULL;
|
|
unsigned long timeout, event_timeout;
|
|
struct qeth_ipa_cmd *cmd;
|
|
|
|
QETH_CARD_TEXT(card, 2, "sendctl");
|
|
|
|
if (card->read_or_write_problem) {
|
|
qeth_release_buffer(iob->channel, iob);
|
|
return -EIO;
|
|
}
|
|
reply = qeth_alloc_reply(card);
|
|
if (!reply) {
|
|
return -ENOMEM;
|
|
}
|
|
reply->callback = reply_cb;
|
|
reply->param = reply_param;
|
|
if (card->state == CARD_STATE_DOWN)
|
|
reply->seqno = QETH_IDX_COMMAND_SEQNO;
|
|
else
|
|
reply->seqno = card->seqno.ipa++;
|
|
init_waitqueue_head(&reply->wait_q);
|
|
spin_lock_irqsave(&card->lock, flags);
|
|
list_add_tail(&reply->list, &card->cmd_waiter_list);
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
|
QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
|
|
|
|
while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
|
|
qeth_prepare_control_data(card, len, iob);
|
|
|
|
if (IS_IPA(iob->data))
|
|
event_timeout = QETH_IPA_TIMEOUT;
|
|
else
|
|
event_timeout = QETH_TIMEOUT;
|
|
timeout = jiffies + event_timeout;
|
|
|
|
QETH_CARD_TEXT(card, 6, "noirqpnd");
|
|
spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
|
|
rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
|
|
(addr_t) iob, 0, 0);
|
|
spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
|
|
if (rc) {
|
|
QETH_DBF_MESSAGE(2, "%s qeth_send_control_data: "
|
|
"ccw_device_start rc = %i\n",
|
|
dev_name(&card->write.ccwdev->dev), rc);
|
|
QETH_CARD_TEXT_(card, 2, " err%d", rc);
|
|
spin_lock_irqsave(&card->lock, flags);
|
|
list_del_init(&reply->list);
|
|
qeth_put_reply(reply);
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
|
qeth_release_buffer(iob->channel, iob);
|
|
atomic_set(&card->write.irq_pending, 0);
|
|
wake_up(&card->wait_q);
|
|
return rc;
|
|
}
|
|
|
|
/* we have only one long running ipassist, since we can ensure
|
|
process context of this command we can sleep */
|
|
cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
|
|
if ((cmd->hdr.command == IPA_CMD_SETIP) &&
|
|
(cmd->hdr.prot_version == QETH_PROT_IPV4)) {
|
|
if (!wait_event_timeout(reply->wait_q,
|
|
atomic_read(&reply->received), event_timeout))
|
|
goto time_err;
|
|
} else {
|
|
while (!atomic_read(&reply->received)) {
|
|
if (time_after(jiffies, timeout))
|
|
goto time_err;
|
|
cpu_relax();
|
|
}
|
|
}
|
|
|
|
if (reply->rc == -EIO)
|
|
goto error;
|
|
rc = reply->rc;
|
|
qeth_put_reply(reply);
|
|
return rc;
|
|
|
|
time_err:
|
|
reply->rc = -ETIME;
|
|
spin_lock_irqsave(&reply->card->lock, flags);
|
|
list_del_init(&reply->list);
|
|
spin_unlock_irqrestore(&reply->card->lock, flags);
|
|
atomic_inc(&reply->received);
|
|
error:
|
|
atomic_set(&card->write.irq_pending, 0);
|
|
qeth_release_buffer(iob->channel, iob);
|
|
card->write.buf_no = (card->write.buf_no + 1) % QETH_CMD_BUFFER_NO;
|
|
rc = reply->rc;
|
|
qeth_put_reply(reply);
|
|
return rc;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_send_control_data);
|
|
|
|
static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
|
|
unsigned long data)
|
|
{
|
|
struct qeth_cmd_buffer *iob;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "cmenblcb");
|
|
|
|
iob = (struct qeth_cmd_buffer *) data;
|
|
memcpy(&card->token.cm_filter_r,
|
|
QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
|
|
QETH_MPC_TOKEN_LENGTH);
|
|
QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_cm_enable(struct qeth_card *card)
|
|
{
|
|
int rc;
|
|
struct qeth_cmd_buffer *iob;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "cmenable");
|
|
|
|
iob = qeth_wait_for_buffer(&card->write);
|
|
memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
|
|
memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
|
|
&card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
|
|
memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
|
|
&card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
|
|
|
|
rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
|
|
qeth_cm_enable_cb, NULL);
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
|
|
unsigned long data)
|
|
{
|
|
|
|
struct qeth_cmd_buffer *iob;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "cmsetpcb");
|
|
|
|
iob = (struct qeth_cmd_buffer *) data;
|
|
memcpy(&card->token.cm_connection_r,
|
|
QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
|
|
QETH_MPC_TOKEN_LENGTH);
|
|
QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_cm_setup(struct qeth_card *card)
|
|
{
|
|
int rc;
|
|
struct qeth_cmd_buffer *iob;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "cmsetup");
|
|
|
|
iob = qeth_wait_for_buffer(&card->write);
|
|
memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
|
|
memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
|
|
&card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
|
|
memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
|
|
&card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
|
|
memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
|
|
&card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
|
|
rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
|
|
qeth_cm_setup_cb, NULL);
|
|
return rc;
|
|
|
|
}
|
|
|
|
static inline int qeth_get_initial_mtu_for_card(struct qeth_card *card)
|
|
{
|
|
switch (card->info.type) {
|
|
case QETH_CARD_TYPE_UNKNOWN:
|
|
return 1500;
|
|
case QETH_CARD_TYPE_IQD:
|
|
return card->info.max_mtu;
|
|
case QETH_CARD_TYPE_OSD:
|
|
switch (card->info.link_type) {
|
|
case QETH_LINK_TYPE_HSTR:
|
|
case QETH_LINK_TYPE_LANE_TR:
|
|
return 2000;
|
|
default:
|
|
return card->options.layer2 ? 1500 : 1492;
|
|
}
|
|
case QETH_CARD_TYPE_OSM:
|
|
case QETH_CARD_TYPE_OSX:
|
|
return card->options.layer2 ? 1500 : 1492;
|
|
default:
|
|
return 1500;
|
|
}
|
|
}
|
|
|
|
static inline int qeth_get_mtu_outof_framesize(int framesize)
|
|
{
|
|
switch (framesize) {
|
|
case 0x4000:
|
|
return 8192;
|
|
case 0x6000:
|
|
return 16384;
|
|
case 0xa000:
|
|
return 32768;
|
|
case 0xffff:
|
|
return 57344;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static inline int qeth_mtu_is_valid(struct qeth_card *card, int mtu)
|
|
{
|
|
switch (card->info.type) {
|
|
case QETH_CARD_TYPE_OSD:
|
|
case QETH_CARD_TYPE_OSM:
|
|
case QETH_CARD_TYPE_OSX:
|
|
case QETH_CARD_TYPE_IQD:
|
|
return ((mtu >= 576) &&
|
|
(mtu <= card->info.max_mtu));
|
|
case QETH_CARD_TYPE_OSN:
|
|
case QETH_CARD_TYPE_UNKNOWN:
|
|
default:
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
|
|
unsigned long data)
|
|
{
|
|
|
|
__u16 mtu, framesize;
|
|
__u16 len;
|
|
__u8 link_type;
|
|
struct qeth_cmd_buffer *iob;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "ulpenacb");
|
|
|
|
iob = (struct qeth_cmd_buffer *) data;
|
|
memcpy(&card->token.ulp_filter_r,
|
|
QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
|
|
QETH_MPC_TOKEN_LENGTH);
|
|
if (card->info.type == QETH_CARD_TYPE_IQD) {
|
|
memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
|
|
mtu = qeth_get_mtu_outof_framesize(framesize);
|
|
if (!mtu) {
|
|
iob->rc = -EINVAL;
|
|
QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
|
|
return 0;
|
|
}
|
|
if (card->info.initial_mtu && (card->info.initial_mtu != mtu)) {
|
|
/* frame size has changed */
|
|
if (card->dev &&
|
|
((card->dev->mtu == card->info.initial_mtu) ||
|
|
(card->dev->mtu > mtu)))
|
|
card->dev->mtu = mtu;
|
|
qeth_free_qdio_buffers(card);
|
|
}
|
|
card->info.initial_mtu = mtu;
|
|
card->info.max_mtu = mtu;
|
|
card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
|
|
} else {
|
|
card->info.max_mtu = *(__u16 *)QETH_ULP_ENABLE_RESP_MAX_MTU(
|
|
iob->data);
|
|
card->info.initial_mtu = min(card->info.max_mtu,
|
|
qeth_get_initial_mtu_for_card(card));
|
|
card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
|
|
}
|
|
|
|
memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
|
|
if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
|
|
memcpy(&link_type,
|
|
QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
|
|
card->info.link_type = link_type;
|
|
} else
|
|
card->info.link_type = 0;
|
|
QETH_DBF_TEXT_(SETUP, 2, "link%d", card->info.link_type);
|
|
QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_ulp_enable(struct qeth_card *card)
|
|
{
|
|
int rc;
|
|
char prot_type;
|
|
struct qeth_cmd_buffer *iob;
|
|
|
|
/*FIXME: trace view callbacks*/
|
|
QETH_DBF_TEXT(SETUP, 2, "ulpenabl");
|
|
|
|
iob = qeth_wait_for_buffer(&card->write);
|
|
memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
|
|
|
|
*(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
|
|
(__u8) card->info.portno;
|
|
if (card->options.layer2)
|
|
if (card->info.type == QETH_CARD_TYPE_OSN)
|
|
prot_type = QETH_PROT_OSN2;
|
|
else
|
|
prot_type = QETH_PROT_LAYER2;
|
|
else
|
|
prot_type = QETH_PROT_TCPIP;
|
|
|
|
memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1);
|
|
memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
|
|
&card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
|
|
memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
|
|
&card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
|
|
memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
|
|
card->info.portname, 9);
|
|
rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
|
|
qeth_ulp_enable_cb, NULL);
|
|
return rc;
|
|
|
|
}
|
|
|
|
static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
|
|
unsigned long data)
|
|
{
|
|
struct qeth_cmd_buffer *iob;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "ulpstpcb");
|
|
|
|
iob = (struct qeth_cmd_buffer *) data;
|
|
memcpy(&card->token.ulp_connection_r,
|
|
QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
|
|
QETH_MPC_TOKEN_LENGTH);
|
|
if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
|
|
3)) {
|
|
QETH_DBF_TEXT(SETUP, 2, "olmlimit");
|
|
dev_err(&card->gdev->dev, "A connection could not be "
|
|
"established because of an OLM limit\n");
|
|
iob->rc = -EMLINK;
|
|
}
|
|
QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_ulp_setup(struct qeth_card *card)
|
|
{
|
|
int rc;
|
|
__u16 temp;
|
|
struct qeth_cmd_buffer *iob;
|
|
struct ccw_dev_id dev_id;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "ulpsetup");
|
|
|
|
iob = qeth_wait_for_buffer(&card->write);
|
|
memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
|
|
|
|
memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
|
|
&card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
|
|
memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
|
|
&card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
|
|
memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
|
|
&card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
|
|
|
|
ccw_device_get_id(CARD_DDEV(card), &dev_id);
|
|
memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2);
|
|
temp = (card->info.cula << 8) + card->info.unit_addr2;
|
|
memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
|
|
rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
|
|
qeth_ulp_setup_cb, NULL);
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *q, int bidx)
|
|
{
|
|
int rc;
|
|
struct qeth_qdio_out_buffer *newbuf;
|
|
|
|
rc = 0;
|
|
newbuf = kmem_cache_zalloc(qeth_qdio_outbuf_cache, GFP_ATOMIC);
|
|
if (!newbuf) {
|
|
rc = -ENOMEM;
|
|
goto out;
|
|
}
|
|
newbuf->buffer = &q->qdio_bufs[bidx];
|
|
skb_queue_head_init(&newbuf->skb_list);
|
|
lockdep_set_class(&newbuf->skb_list.lock, &qdio_out_skb_queue_key);
|
|
newbuf->q = q;
|
|
newbuf->aob = NULL;
|
|
newbuf->next_pending = q->bufs[bidx];
|
|
atomic_set(&newbuf->state, QETH_QDIO_BUF_EMPTY);
|
|
q->bufs[bidx] = newbuf;
|
|
if (q->bufstates) {
|
|
q->bufstates[bidx].user = newbuf;
|
|
QETH_CARD_TEXT_(q->card, 2, "nbs%d", bidx);
|
|
QETH_CARD_TEXT_(q->card, 2, "%lx", (long) newbuf);
|
|
QETH_CARD_TEXT_(q->card, 2, "%lx",
|
|
(long) newbuf->next_pending);
|
|
}
|
|
out:
|
|
return rc;
|
|
}
|
|
|
|
|
|
static int qeth_alloc_qdio_buffers(struct qeth_card *card)
|
|
{
|
|
int i, j;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "allcqdbf");
|
|
|
|
if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
|
|
QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
|
|
return 0;
|
|
|
|
card->qdio.in_q = kzalloc(sizeof(struct qeth_qdio_q),
|
|
GFP_KERNEL);
|
|
if (!card->qdio.in_q)
|
|
goto out_nomem;
|
|
QETH_DBF_TEXT(SETUP, 2, "inq");
|
|
QETH_DBF_HEX(SETUP, 2, &card->qdio.in_q, sizeof(void *));
|
|
memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
|
|
/* give inbound qeth_qdio_buffers their qdio_buffers */
|
|
for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) {
|
|
card->qdio.in_q->bufs[i].buffer =
|
|
&card->qdio.in_q->qdio_bufs[i];
|
|
card->qdio.in_q->bufs[i].rx_skb = NULL;
|
|
}
|
|
/* inbound buffer pool */
|
|
if (qeth_alloc_buffer_pool(card))
|
|
goto out_freeinq;
|
|
|
|
/* outbound */
|
|
card->qdio.out_qs =
|
|
kzalloc(card->qdio.no_out_queues *
|
|
sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
|
|
if (!card->qdio.out_qs)
|
|
goto out_freepool;
|
|
for (i = 0; i < card->qdio.no_out_queues; ++i) {
|
|
card->qdio.out_qs[i] = kzalloc(sizeof(struct qeth_qdio_out_q),
|
|
GFP_KERNEL);
|
|
if (!card->qdio.out_qs[i])
|
|
goto out_freeoutq;
|
|
QETH_DBF_TEXT_(SETUP, 2, "outq %i", i);
|
|
QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *));
|
|
card->qdio.out_qs[i]->queue_no = i;
|
|
/* give outbound qeth_qdio_buffers their qdio_buffers */
|
|
for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
|
|
WARN_ON(card->qdio.out_qs[i]->bufs[j] != NULL);
|
|
if (qeth_init_qdio_out_buf(card->qdio.out_qs[i], j))
|
|
goto out_freeoutqbufs;
|
|
}
|
|
}
|
|
|
|
/* completion */
|
|
if (qeth_alloc_cq(card))
|
|
goto out_freeoutq;
|
|
|
|
return 0;
|
|
|
|
out_freeoutqbufs:
|
|
while (j > 0) {
|
|
--j;
|
|
kmem_cache_free(qeth_qdio_outbuf_cache,
|
|
card->qdio.out_qs[i]->bufs[j]);
|
|
card->qdio.out_qs[i]->bufs[j] = NULL;
|
|
}
|
|
out_freeoutq:
|
|
while (i > 0) {
|
|
kfree(card->qdio.out_qs[--i]);
|
|
qeth_clear_outq_buffers(card->qdio.out_qs[i], 1);
|
|
}
|
|
kfree(card->qdio.out_qs);
|
|
card->qdio.out_qs = NULL;
|
|
out_freepool:
|
|
qeth_free_buffer_pool(card);
|
|
out_freeinq:
|
|
kfree(card->qdio.in_q);
|
|
card->qdio.in_q = NULL;
|
|
out_nomem:
|
|
atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
static void qeth_create_qib_param_field(struct qeth_card *card,
|
|
char *param_field)
|
|
{
|
|
|
|
param_field[0] = _ascebc['P'];
|
|
param_field[1] = _ascebc['C'];
|
|
param_field[2] = _ascebc['I'];
|
|
param_field[3] = _ascebc['T'];
|
|
*((unsigned int *) (¶m_field[4])) = QETH_PCI_THRESHOLD_A(card);
|
|
*((unsigned int *) (¶m_field[8])) = QETH_PCI_THRESHOLD_B(card);
|
|
*((unsigned int *) (¶m_field[12])) = QETH_PCI_TIMER_VALUE(card);
|
|
}
|
|
|
|
static void qeth_create_qib_param_field_blkt(struct qeth_card *card,
|
|
char *param_field)
|
|
{
|
|
param_field[16] = _ascebc['B'];
|
|
param_field[17] = _ascebc['L'];
|
|
param_field[18] = _ascebc['K'];
|
|
param_field[19] = _ascebc['T'];
|
|
*((unsigned int *) (¶m_field[20])) = card->info.blkt.time_total;
|
|
*((unsigned int *) (¶m_field[24])) = card->info.blkt.inter_packet;
|
|
*((unsigned int *) (¶m_field[28])) =
|
|
card->info.blkt.inter_packet_jumbo;
|
|
}
|
|
|
|
static int qeth_qdio_activate(struct qeth_card *card)
|
|
{
|
|
QETH_DBF_TEXT(SETUP, 3, "qdioact");
|
|
return qdio_activate(CARD_DDEV(card));
|
|
}
|
|
|
|
static int qeth_dm_act(struct qeth_card *card)
|
|
{
|
|
int rc;
|
|
struct qeth_cmd_buffer *iob;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "dmact");
|
|
|
|
iob = qeth_wait_for_buffer(&card->write);
|
|
memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
|
|
|
|
memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
|
|
&card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
|
|
memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
|
|
&card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
|
|
rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_mpc_initialize(struct qeth_card *card)
|
|
{
|
|
int rc;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "mpcinit");
|
|
|
|
rc = qeth_issue_next_read(card);
|
|
if (rc) {
|
|
QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
|
|
return rc;
|
|
}
|
|
rc = qeth_cm_enable(card);
|
|
if (rc) {
|
|
QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
|
|
goto out_qdio;
|
|
}
|
|
rc = qeth_cm_setup(card);
|
|
if (rc) {
|
|
QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
|
|
goto out_qdio;
|
|
}
|
|
rc = qeth_ulp_enable(card);
|
|
if (rc) {
|
|
QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
|
|
goto out_qdio;
|
|
}
|
|
rc = qeth_ulp_setup(card);
|
|
if (rc) {
|
|
QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
|
|
goto out_qdio;
|
|
}
|
|
rc = qeth_alloc_qdio_buffers(card);
|
|
if (rc) {
|
|
QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
|
|
goto out_qdio;
|
|
}
|
|
rc = qeth_qdio_establish(card);
|
|
if (rc) {
|
|
QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
|
|
qeth_free_qdio_buffers(card);
|
|
goto out_qdio;
|
|
}
|
|
rc = qeth_qdio_activate(card);
|
|
if (rc) {
|
|
QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc);
|
|
goto out_qdio;
|
|
}
|
|
rc = qeth_dm_act(card);
|
|
if (rc) {
|
|
QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc);
|
|
goto out_qdio;
|
|
}
|
|
|
|
return 0;
|
|
out_qdio:
|
|
qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
|
|
qdio_free(CARD_DDEV(card));
|
|
return rc;
|
|
}
|
|
|
|
static void qeth_print_status_with_portname(struct qeth_card *card)
|
|
{
|
|
char dbf_text[15];
|
|
int i;
|
|
|
|
sprintf(dbf_text, "%s", card->info.portname + 1);
|
|
for (i = 0; i < 8; i++)
|
|
dbf_text[i] =
|
|
(char) _ebcasc[(__u8) dbf_text[i]];
|
|
dbf_text[8] = 0;
|
|
dev_info(&card->gdev->dev, "Device is a%s card%s%s%s\n"
|
|
"with link type %s (portname: %s)\n",
|
|
qeth_get_cardname(card),
|
|
(card->info.mcl_level[0]) ? " (level: " : "",
|
|
(card->info.mcl_level[0]) ? card->info.mcl_level : "",
|
|
(card->info.mcl_level[0]) ? ")" : "",
|
|
qeth_get_cardname_short(card),
|
|
dbf_text);
|
|
|
|
}
|
|
|
|
static void qeth_print_status_no_portname(struct qeth_card *card)
|
|
{
|
|
if (card->info.portname[0])
|
|
dev_info(&card->gdev->dev, "Device is a%s "
|
|
"card%s%s%s\nwith link type %s "
|
|
"(no portname needed by interface).\n",
|
|
qeth_get_cardname(card),
|
|
(card->info.mcl_level[0]) ? " (level: " : "",
|
|
(card->info.mcl_level[0]) ? card->info.mcl_level : "",
|
|
(card->info.mcl_level[0]) ? ")" : "",
|
|
qeth_get_cardname_short(card));
|
|
else
|
|
dev_info(&card->gdev->dev, "Device is a%s "
|
|
"card%s%s%s\nwith link type %s.\n",
|
|
qeth_get_cardname(card),
|
|
(card->info.mcl_level[0]) ? " (level: " : "",
|
|
(card->info.mcl_level[0]) ? card->info.mcl_level : "",
|
|
(card->info.mcl_level[0]) ? ")" : "",
|
|
qeth_get_cardname_short(card));
|
|
}
|
|
|
|
void qeth_print_status_message(struct qeth_card *card)
|
|
{
|
|
switch (card->info.type) {
|
|
case QETH_CARD_TYPE_OSD:
|
|
case QETH_CARD_TYPE_OSM:
|
|
case QETH_CARD_TYPE_OSX:
|
|
/* VM will use a non-zero first character
|
|
* to indicate a HiperSockets like reporting
|
|
* of the level OSA sets the first character to zero
|
|
* */
|
|
if (!card->info.mcl_level[0]) {
|
|
sprintf(card->info.mcl_level, "%02x%02x",
|
|
card->info.mcl_level[2],
|
|
card->info.mcl_level[3]);
|
|
|
|
card->info.mcl_level[QETH_MCL_LENGTH] = 0;
|
|
break;
|
|
}
|
|
/* fallthrough */
|
|
case QETH_CARD_TYPE_IQD:
|
|
if ((card->info.guestlan) ||
|
|
(card->info.mcl_level[0] & 0x80)) {
|
|
card->info.mcl_level[0] = (char) _ebcasc[(__u8)
|
|
card->info.mcl_level[0]];
|
|
card->info.mcl_level[1] = (char) _ebcasc[(__u8)
|
|
card->info.mcl_level[1]];
|
|
card->info.mcl_level[2] = (char) _ebcasc[(__u8)
|
|
card->info.mcl_level[2]];
|
|
card->info.mcl_level[3] = (char) _ebcasc[(__u8)
|
|
card->info.mcl_level[3]];
|
|
card->info.mcl_level[QETH_MCL_LENGTH] = 0;
|
|
}
|
|
break;
|
|
default:
|
|
memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
|
|
}
|
|
if (card->info.portname_required)
|
|
qeth_print_status_with_portname(card);
|
|
else
|
|
qeth_print_status_no_portname(card);
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_print_status_message);
|
|
|
|
static void qeth_initialize_working_pool_list(struct qeth_card *card)
|
|
{
|
|
struct qeth_buffer_pool_entry *entry;
|
|
|
|
QETH_CARD_TEXT(card, 5, "inwrklst");
|
|
|
|
list_for_each_entry(entry,
|
|
&card->qdio.init_pool.entry_list, init_list) {
|
|
qeth_put_buffer_pool_entry(card, entry);
|
|
}
|
|
}
|
|
|
|
static inline struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry(
|
|
struct qeth_card *card)
|
|
{
|
|
struct list_head *plh;
|
|
struct qeth_buffer_pool_entry *entry;
|
|
int i, free;
|
|
struct page *page;
|
|
|
|
if (list_empty(&card->qdio.in_buf_pool.entry_list))
|
|
return NULL;
|
|
|
|
list_for_each(plh, &card->qdio.in_buf_pool.entry_list) {
|
|
entry = list_entry(plh, struct qeth_buffer_pool_entry, list);
|
|
free = 1;
|
|
for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
|
|
if (page_count(virt_to_page(entry->elements[i])) > 1) {
|
|
free = 0;
|
|
break;
|
|
}
|
|
}
|
|
if (free) {
|
|
list_del_init(&entry->list);
|
|
return entry;
|
|
}
|
|
}
|
|
|
|
/* no free buffer in pool so take first one and swap pages */
|
|
entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
|
|
struct qeth_buffer_pool_entry, list);
|
|
for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
|
|
if (page_count(virt_to_page(entry->elements[i])) > 1) {
|
|
page = alloc_page(GFP_ATOMIC);
|
|
if (!page) {
|
|
return NULL;
|
|
} else {
|
|
free_page((unsigned long)entry->elements[i]);
|
|
entry->elements[i] = page_address(page);
|
|
if (card->options.performance_stats)
|
|
card->perf_stats.sg_alloc_page_rx++;
|
|
}
|
|
}
|
|
}
|
|
list_del_init(&entry->list);
|
|
return entry;
|
|
}
|
|
|
|
static int qeth_init_input_buffer(struct qeth_card *card,
|
|
struct qeth_qdio_buffer *buf)
|
|
{
|
|
struct qeth_buffer_pool_entry *pool_entry;
|
|
int i;
|
|
|
|
if ((card->options.cq == QETH_CQ_ENABLED) && (!buf->rx_skb)) {
|
|
buf->rx_skb = dev_alloc_skb(QETH_RX_PULL_LEN + ETH_HLEN);
|
|
if (!buf->rx_skb)
|
|
return 1;
|
|
}
|
|
|
|
pool_entry = qeth_find_free_buffer_pool_entry(card);
|
|
if (!pool_entry)
|
|
return 1;
|
|
|
|
/*
|
|
* since the buffer is accessed only from the input_tasklet
|
|
* there shouldn't be a need to synchronize; also, since we use
|
|
* the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
|
|
* buffers
|
|
*/
|
|
|
|
buf->pool_entry = pool_entry;
|
|
for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
|
|
buf->buffer->element[i].length = PAGE_SIZE;
|
|
buf->buffer->element[i].addr = pool_entry->elements[i];
|
|
if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
|
|
buf->buffer->element[i].eflags = SBAL_EFLAGS_LAST_ENTRY;
|
|
else
|
|
buf->buffer->element[i].eflags = 0;
|
|
buf->buffer->element[i].sflags = 0;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int qeth_init_qdio_queues(struct qeth_card *card)
|
|
{
|
|
int i, j;
|
|
int rc;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "initqdqs");
|
|
|
|
/* inbound queue */
|
|
memset(card->qdio.in_q->qdio_bufs, 0,
|
|
QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
|
|
qeth_initialize_working_pool_list(card);
|
|
/*give only as many buffers to hardware as we have buffer pool entries*/
|
|
for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
|
|
qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
|
|
card->qdio.in_q->next_buf_to_init =
|
|
card->qdio.in_buf_pool.buf_count - 1;
|
|
rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
|
|
card->qdio.in_buf_pool.buf_count - 1);
|
|
if (rc) {
|
|
QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
|
|
return rc;
|
|
}
|
|
|
|
/* completion */
|
|
rc = qeth_cq_init(card);
|
|
if (rc) {
|
|
return rc;
|
|
}
|
|
|
|
/* outbound queue */
|
|
for (i = 0; i < card->qdio.no_out_queues; ++i) {
|
|
memset(card->qdio.out_qs[i]->qdio_bufs, 0,
|
|
QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
|
|
for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
|
|
qeth_clear_output_buffer(card->qdio.out_qs[i],
|
|
card->qdio.out_qs[i]->bufs[j],
|
|
QETH_QDIO_BUF_EMPTY);
|
|
}
|
|
card->qdio.out_qs[i]->card = card;
|
|
card->qdio.out_qs[i]->next_buf_to_fill = 0;
|
|
card->qdio.out_qs[i]->do_pack = 0;
|
|
atomic_set(&card->qdio.out_qs[i]->used_buffers, 0);
|
|
atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
|
|
atomic_set(&card->qdio.out_qs[i]->state,
|
|
QETH_OUT_Q_UNLOCKED);
|
|
}
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_init_qdio_queues);
|
|
|
|
static inline __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type)
|
|
{
|
|
switch (link_type) {
|
|
case QETH_LINK_TYPE_HSTR:
|
|
return 2;
|
|
default:
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
static void qeth_fill_ipacmd_header(struct qeth_card *card,
|
|
struct qeth_ipa_cmd *cmd, __u8 command,
|
|
enum qeth_prot_versions prot)
|
|
{
|
|
memset(cmd, 0, sizeof(struct qeth_ipa_cmd));
|
|
cmd->hdr.command = command;
|
|
cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
|
|
cmd->hdr.seqno = card->seqno.ipa;
|
|
cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
|
|
cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
|
|
if (card->options.layer2)
|
|
cmd->hdr.prim_version_no = 2;
|
|
else
|
|
cmd->hdr.prim_version_no = 1;
|
|
cmd->hdr.param_count = 1;
|
|
cmd->hdr.prot_version = prot;
|
|
cmd->hdr.ipa_supported = 0;
|
|
cmd->hdr.ipa_enabled = 0;
|
|
}
|
|
|
|
struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card,
|
|
enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot)
|
|
{
|
|
struct qeth_cmd_buffer *iob;
|
|
struct qeth_ipa_cmd *cmd;
|
|
|
|
iob = qeth_wait_for_buffer(&card->write);
|
|
cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
|
|
qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
|
|
|
|
return iob;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer);
|
|
|
|
void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
|
|
char prot_type)
|
|
{
|
|
memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
|
|
memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1);
|
|
memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
|
|
&card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd);
|
|
|
|
int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
|
|
int (*reply_cb)(struct qeth_card *, struct qeth_reply*,
|
|
unsigned long),
|
|
void *reply_param)
|
|
{
|
|
int rc;
|
|
char prot_type;
|
|
|
|
QETH_CARD_TEXT(card, 4, "sendipa");
|
|
|
|
if (card->options.layer2)
|
|
if (card->info.type == QETH_CARD_TYPE_OSN)
|
|
prot_type = QETH_PROT_OSN2;
|
|
else
|
|
prot_type = QETH_PROT_LAYER2;
|
|
else
|
|
prot_type = QETH_PROT_TCPIP;
|
|
qeth_prepare_ipa_cmd(card, iob, prot_type);
|
|
rc = qeth_send_control_data(card, IPA_CMD_LENGTH,
|
|
iob, reply_cb, reply_param);
|
|
if (rc == -ETIME) {
|
|
qeth_clear_ipacmd_list(card);
|
|
qeth_schedule_recovery(card);
|
|
}
|
|
return rc;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd);
|
|
|
|
int qeth_send_startlan(struct qeth_card *card)
|
|
{
|
|
int rc;
|
|
struct qeth_cmd_buffer *iob;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "strtlan");
|
|
|
|
iob = qeth_get_ipacmd_buffer(card, IPA_CMD_STARTLAN, 0);
|
|
rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
|
|
return rc;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_send_startlan);
|
|
|
|
static int qeth_default_setadapterparms_cb(struct qeth_card *card,
|
|
struct qeth_reply *reply, unsigned long data)
|
|
{
|
|
struct qeth_ipa_cmd *cmd;
|
|
|
|
QETH_CARD_TEXT(card, 4, "defadpcb");
|
|
|
|
cmd = (struct qeth_ipa_cmd *) data;
|
|
if (cmd->hdr.return_code == 0)
|
|
cmd->hdr.return_code =
|
|
cmd->data.setadapterparms.hdr.return_code;
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_query_setadapterparms_cb(struct qeth_card *card,
|
|
struct qeth_reply *reply, unsigned long data)
|
|
{
|
|
struct qeth_ipa_cmd *cmd;
|
|
|
|
QETH_CARD_TEXT(card, 3, "quyadpcb");
|
|
|
|
cmd = (struct qeth_ipa_cmd *) data;
|
|
if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) {
|
|
card->info.link_type =
|
|
cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
|
|
QETH_DBF_TEXT_(SETUP, 2, "lnk %d", card->info.link_type);
|
|
}
|
|
card->options.adp.supported_funcs =
|
|
cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
|
|
return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
|
|
}
|
|
|
|
static struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card,
|
|
__u32 command, __u32 cmdlen)
|
|
{
|
|
struct qeth_cmd_buffer *iob;
|
|
struct qeth_ipa_cmd *cmd;
|
|
|
|
iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS,
|
|
QETH_PROT_IPV4);
|
|
cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
|
|
cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
|
|
cmd->data.setadapterparms.hdr.command_code = command;
|
|
cmd->data.setadapterparms.hdr.used_total = 1;
|
|
cmd->data.setadapterparms.hdr.seq_no = 1;
|
|
|
|
return iob;
|
|
}
|
|
|
|
int qeth_query_setadapterparms(struct qeth_card *card)
|
|
{
|
|
int rc;
|
|
struct qeth_cmd_buffer *iob;
|
|
|
|
QETH_CARD_TEXT(card, 3, "queryadp");
|
|
iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
|
|
sizeof(struct qeth_ipacmd_setadpparms));
|
|
rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
|
|
return rc;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_query_setadapterparms);
|
|
|
|
static int qeth_query_ipassists_cb(struct qeth_card *card,
|
|
struct qeth_reply *reply, unsigned long data)
|
|
{
|
|
struct qeth_ipa_cmd *cmd;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "qipasscb");
|
|
|
|
cmd = (struct qeth_ipa_cmd *) data;
|
|
|
|
switch (cmd->hdr.return_code) {
|
|
case IPA_RC_NOTSUPP:
|
|
case IPA_RC_L2_UNSUPPORTED_CMD:
|
|
QETH_DBF_TEXT(SETUP, 2, "ipaunsup");
|
|
card->options.ipa4.supported_funcs |= IPA_SETADAPTERPARMS;
|
|
card->options.ipa6.supported_funcs |= IPA_SETADAPTERPARMS;
|
|
return -0;
|
|
default:
|
|
if (cmd->hdr.return_code) {
|
|
QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Unhandled "
|
|
"rc=%d\n",
|
|
dev_name(&card->gdev->dev),
|
|
cmd->hdr.return_code);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
|
|
card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
|
|
card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
|
|
} else if (cmd->hdr.prot_version == QETH_PROT_IPV6) {
|
|
card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
|
|
card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
|
|
} else
|
|
QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Flawed LIC detected"
|
|
"\n", dev_name(&card->gdev->dev));
|
|
return 0;
|
|
}
|
|
|
|
int qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
|
|
{
|
|
int rc;
|
|
struct qeth_cmd_buffer *iob;
|
|
|
|
QETH_DBF_TEXT_(SETUP, 2, "qipassi%i", prot);
|
|
iob = qeth_get_ipacmd_buffer(card, IPA_CMD_QIPASSIST, prot);
|
|
rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
|
|
return rc;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_query_ipassists);
|
|
|
|
static int qeth_query_setdiagass_cb(struct qeth_card *card,
|
|
struct qeth_reply *reply, unsigned long data)
|
|
{
|
|
struct qeth_ipa_cmd *cmd;
|
|
__u16 rc;
|
|
|
|
cmd = (struct qeth_ipa_cmd *)data;
|
|
rc = cmd->hdr.return_code;
|
|
if (rc)
|
|
QETH_CARD_TEXT_(card, 2, "diagq:%x", rc);
|
|
else
|
|
card->info.diagass_support = cmd->data.diagass.ext;
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_query_setdiagass(struct qeth_card *card)
|
|
{
|
|
struct qeth_cmd_buffer *iob;
|
|
struct qeth_ipa_cmd *cmd;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "qdiagass");
|
|
iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
|
|
cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
|
|
cmd->data.diagass.subcmd_len = 16;
|
|
cmd->data.diagass.subcmd = QETH_DIAGS_CMD_QUERY;
|
|
return qeth_send_ipa_cmd(card, iob, qeth_query_setdiagass_cb, NULL);
|
|
}
|
|
|
|
static void qeth_get_trap_id(struct qeth_card *card, struct qeth_trap_id *tid)
|
|
{
|
|
unsigned long info = get_zeroed_page(GFP_KERNEL);
|
|
struct sysinfo_2_2_2 *info222 = (struct sysinfo_2_2_2 *)info;
|
|
struct sysinfo_3_2_2 *info322 = (struct sysinfo_3_2_2 *)info;
|
|
struct ccw_dev_id ccwid;
|
|
int level;
|
|
|
|
tid->chpid = card->info.chpid;
|
|
ccw_device_get_id(CARD_RDEV(card), &ccwid);
|
|
tid->ssid = ccwid.ssid;
|
|
tid->devno = ccwid.devno;
|
|
if (!info)
|
|
return;
|
|
level = stsi(NULL, 0, 0, 0);
|
|
if ((level >= 2) && (stsi(info222, 2, 2, 2) == 0))
|
|
tid->lparnr = info222->lpar_number;
|
|
if ((level >= 3) && (stsi(info322, 3, 2, 2) == 0)) {
|
|
EBCASC(info322->vm[0].name, sizeof(info322->vm[0].name));
|
|
memcpy(tid->vmname, info322->vm[0].name, sizeof(tid->vmname));
|
|
}
|
|
free_page(info);
|
|
return;
|
|
}
|
|
|
|
static int qeth_hw_trap_cb(struct qeth_card *card,
|
|
struct qeth_reply *reply, unsigned long data)
|
|
{
|
|
struct qeth_ipa_cmd *cmd;
|
|
__u16 rc;
|
|
|
|
cmd = (struct qeth_ipa_cmd *)data;
|
|
rc = cmd->hdr.return_code;
|
|
if (rc)
|
|
QETH_CARD_TEXT_(card, 2, "trapc:%x", rc);
|
|
return 0;
|
|
}
|
|
|
|
int qeth_hw_trap(struct qeth_card *card, enum qeth_diags_trap_action action)
|
|
{
|
|
struct qeth_cmd_buffer *iob;
|
|
struct qeth_ipa_cmd *cmd;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "diagtrap");
|
|
iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
|
|
cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
|
|
cmd->data.diagass.subcmd_len = 80;
|
|
cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRAP;
|
|
cmd->data.diagass.type = 1;
|
|
cmd->data.diagass.action = action;
|
|
switch (action) {
|
|
case QETH_DIAGS_TRAP_ARM:
|
|
cmd->data.diagass.options = 0x0003;
|
|
cmd->data.diagass.ext = 0x00010000 +
|
|
sizeof(struct qeth_trap_id);
|
|
qeth_get_trap_id(card,
|
|
(struct qeth_trap_id *)cmd->data.diagass.cdata);
|
|
break;
|
|
case QETH_DIAGS_TRAP_DISARM:
|
|
cmd->data.diagass.options = 0x0001;
|
|
break;
|
|
case QETH_DIAGS_TRAP_CAPTURE:
|
|
break;
|
|
}
|
|
return qeth_send_ipa_cmd(card, iob, qeth_hw_trap_cb, NULL);
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_hw_trap);
|
|
|
|
int qeth_check_qdio_errors(struct qeth_card *card, struct qdio_buffer *buf,
|
|
unsigned int qdio_error, const char *dbftext)
|
|
{
|
|
if (qdio_error) {
|
|
QETH_CARD_TEXT(card, 2, dbftext);
|
|
QETH_CARD_TEXT_(card, 2, " F15=%02X",
|
|
buf->element[15].sflags);
|
|
QETH_CARD_TEXT_(card, 2, " F14=%02X",
|
|
buf->element[14].sflags);
|
|
QETH_CARD_TEXT_(card, 2, " qerr=%X", qdio_error);
|
|
if ((buf->element[15].sflags) == 0x12) {
|
|
card->stats.rx_dropped++;
|
|
return 0;
|
|
} else
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_check_qdio_errors);
|
|
|
|
void qeth_buffer_reclaim_work(struct work_struct *work)
|
|
{
|
|
struct qeth_card *card = container_of(work, struct qeth_card,
|
|
buffer_reclaim_work.work);
|
|
|
|
QETH_CARD_TEXT_(card, 2, "brw:%x", card->reclaim_index);
|
|
qeth_queue_input_buffer(card, card->reclaim_index);
|
|
}
|
|
|
|
void qeth_queue_input_buffer(struct qeth_card *card, int index)
|
|
{
|
|
struct qeth_qdio_q *queue = card->qdio.in_q;
|
|
struct list_head *lh;
|
|
int count;
|
|
int i;
|
|
int rc;
|
|
int newcount = 0;
|
|
|
|
count = (index < queue->next_buf_to_init)?
|
|
card->qdio.in_buf_pool.buf_count -
|
|
(queue->next_buf_to_init - index) :
|
|
card->qdio.in_buf_pool.buf_count -
|
|
(queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
|
|
/* only requeue at a certain threshold to avoid SIGAs */
|
|
if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) {
|
|
for (i = queue->next_buf_to_init;
|
|
i < queue->next_buf_to_init + count; ++i) {
|
|
if (qeth_init_input_buffer(card,
|
|
&queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) {
|
|
break;
|
|
} else {
|
|
newcount++;
|
|
}
|
|
}
|
|
|
|
if (newcount < count) {
|
|
/* we are in memory shortage so we switch back to
|
|
traditional skb allocation and drop packages */
|
|
atomic_set(&card->force_alloc_skb, 3);
|
|
count = newcount;
|
|
} else {
|
|
atomic_add_unless(&card->force_alloc_skb, -1, 0);
|
|
}
|
|
|
|
if (!count) {
|
|
i = 0;
|
|
list_for_each(lh, &card->qdio.in_buf_pool.entry_list)
|
|
i++;
|
|
if (i == card->qdio.in_buf_pool.buf_count) {
|
|
QETH_CARD_TEXT(card, 2, "qsarbw");
|
|
card->reclaim_index = index;
|
|
schedule_delayed_work(
|
|
&card->buffer_reclaim_work,
|
|
QETH_RECLAIM_WORK_TIME);
|
|
}
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* according to old code it should be avoided to requeue all
|
|
* 128 buffers in order to benefit from PCI avoidance.
|
|
* this function keeps at least one buffer (the buffer at
|
|
* 'index') un-requeued -> this buffer is the first buffer that
|
|
* will be requeued the next time
|
|
*/
|
|
if (card->options.performance_stats) {
|
|
card->perf_stats.inbound_do_qdio_cnt++;
|
|
card->perf_stats.inbound_do_qdio_start_time =
|
|
qeth_get_micros();
|
|
}
|
|
rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0,
|
|
queue->next_buf_to_init, count);
|
|
if (card->options.performance_stats)
|
|
card->perf_stats.inbound_do_qdio_time +=
|
|
qeth_get_micros() -
|
|
card->perf_stats.inbound_do_qdio_start_time;
|
|
if (rc) {
|
|
QETH_CARD_TEXT(card, 2, "qinberr");
|
|
}
|
|
queue->next_buf_to_init = (queue->next_buf_to_init + count) %
|
|
QDIO_MAX_BUFFERS_PER_Q;
|
|
}
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_queue_input_buffer);
|
|
|
|
static int qeth_handle_send_error(struct qeth_card *card,
|
|
struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err)
|
|
{
|
|
int sbalf15 = buffer->buffer->element[15].sflags;
|
|
|
|
QETH_CARD_TEXT(card, 6, "hdsnderr");
|
|
if (card->info.type == QETH_CARD_TYPE_IQD) {
|
|
if (sbalf15 == 0) {
|
|
qdio_err = 0;
|
|
} else {
|
|
qdio_err = 1;
|
|
}
|
|
}
|
|
qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qouterr");
|
|
|
|
if (!qdio_err)
|
|
return QETH_SEND_ERROR_NONE;
|
|
|
|
if ((sbalf15 >= 15) && (sbalf15 <= 31))
|
|
return QETH_SEND_ERROR_RETRY;
|
|
|
|
QETH_CARD_TEXT(card, 1, "lnkfail");
|
|
QETH_CARD_TEXT_(card, 1, "%04x %02x",
|
|
(u16)qdio_err, (u8)sbalf15);
|
|
return QETH_SEND_ERROR_LINK_FAILURE;
|
|
}
|
|
|
|
/*
|
|
* Switched to packing state if the number of used buffers on a queue
|
|
* reaches a certain limit.
|
|
*/
|
|
static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
|
|
{
|
|
if (!queue->do_pack) {
|
|
if (atomic_read(&queue->used_buffers)
|
|
>= QETH_HIGH_WATERMARK_PACK){
|
|
/* switch non-PACKING -> PACKING */
|
|
QETH_CARD_TEXT(queue->card, 6, "np->pack");
|
|
if (queue->card->options.performance_stats)
|
|
queue->card->perf_stats.sc_dp_p++;
|
|
queue->do_pack = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Switches from packing to non-packing mode. If there is a packing
|
|
* buffer on the queue this buffer will be prepared to be flushed.
|
|
* In that case 1 is returned to inform the caller. If no buffer
|
|
* has to be flushed, zero is returned.
|
|
*/
|
|
static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
|
|
{
|
|
struct qeth_qdio_out_buffer *buffer;
|
|
int flush_count = 0;
|
|
|
|
if (queue->do_pack) {
|
|
if (atomic_read(&queue->used_buffers)
|
|
<= QETH_LOW_WATERMARK_PACK) {
|
|
/* switch PACKING -> non-PACKING */
|
|
QETH_CARD_TEXT(queue->card, 6, "pack->np");
|
|
if (queue->card->options.performance_stats)
|
|
queue->card->perf_stats.sc_p_dp++;
|
|
queue->do_pack = 0;
|
|
/* flush packing buffers */
|
|
buffer = queue->bufs[queue->next_buf_to_fill];
|
|
if ((atomic_read(&buffer->state) ==
|
|
QETH_QDIO_BUF_EMPTY) &&
|
|
(buffer->next_element_to_fill > 0)) {
|
|
atomic_set(&buffer->state,
|
|
QETH_QDIO_BUF_PRIMED);
|
|
flush_count++;
|
|
queue->next_buf_to_fill =
|
|
(queue->next_buf_to_fill + 1) %
|
|
QDIO_MAX_BUFFERS_PER_Q;
|
|
}
|
|
}
|
|
}
|
|
return flush_count;
|
|
}
|
|
|
|
|
|
/*
|
|
* Called to flush a packing buffer if no more pci flags are on the queue.
|
|
* Checks if there is a packing buffer and prepares it to be flushed.
|
|
* In that case returns 1, otherwise zero.
|
|
*/
|
|
static int qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
|
|
{
|
|
struct qeth_qdio_out_buffer *buffer;
|
|
|
|
buffer = queue->bufs[queue->next_buf_to_fill];
|
|
if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
|
|
(buffer->next_element_to_fill > 0)) {
|
|
/* it's a packing buffer */
|
|
atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
|
|
queue->next_buf_to_fill =
|
|
(queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index,
|
|
int count)
|
|
{
|
|
struct qeth_qdio_out_buffer *buf;
|
|
int rc;
|
|
int i;
|
|
unsigned int qdio_flags;
|
|
|
|
for (i = index; i < index + count; ++i) {
|
|
int bidx = i % QDIO_MAX_BUFFERS_PER_Q;
|
|
buf = queue->bufs[bidx];
|
|
buf->buffer->element[buf->next_element_to_fill - 1].eflags |=
|
|
SBAL_EFLAGS_LAST_ENTRY;
|
|
|
|
if (queue->bufstates)
|
|
queue->bufstates[bidx].user = buf;
|
|
|
|
if (queue->card->info.type == QETH_CARD_TYPE_IQD)
|
|
continue;
|
|
|
|
if (!queue->do_pack) {
|
|
if ((atomic_read(&queue->used_buffers) >=
|
|
(QETH_HIGH_WATERMARK_PACK -
|
|
QETH_WATERMARK_PACK_FUZZ)) &&
|
|
!atomic_read(&queue->set_pci_flags_count)) {
|
|
/* it's likely that we'll go to packing
|
|
* mode soon */
|
|
atomic_inc(&queue->set_pci_flags_count);
|
|
buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ;
|
|
}
|
|
} else {
|
|
if (!atomic_read(&queue->set_pci_flags_count)) {
|
|
/*
|
|
* there's no outstanding PCI any more, so we
|
|
* have to request a PCI to be sure the the PCI
|
|
* will wake at some time in the future then we
|
|
* can flush packed buffers that might still be
|
|
* hanging around, which can happen if no
|
|
* further send was requested by the stack
|
|
*/
|
|
atomic_inc(&queue->set_pci_flags_count);
|
|
buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ;
|
|
}
|
|
}
|
|
}
|
|
|
|
queue->card->dev->trans_start = jiffies;
|
|
if (queue->card->options.performance_stats) {
|
|
queue->card->perf_stats.outbound_do_qdio_cnt++;
|
|
queue->card->perf_stats.outbound_do_qdio_start_time =
|
|
qeth_get_micros();
|
|
}
|
|
qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
|
|
if (atomic_read(&queue->set_pci_flags_count))
|
|
qdio_flags |= QDIO_FLAG_PCI_OUT;
|
|
rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
|
|
queue->queue_no, index, count);
|
|
if (queue->card->options.performance_stats)
|
|
queue->card->perf_stats.outbound_do_qdio_time +=
|
|
qeth_get_micros() -
|
|
queue->card->perf_stats.outbound_do_qdio_start_time;
|
|
atomic_add(count, &queue->used_buffers);
|
|
if (rc) {
|
|
queue->card->stats.tx_errors += count;
|
|
/* ignore temporary SIGA errors without busy condition */
|
|
if (rc == -ENOBUFS)
|
|
return;
|
|
QETH_CARD_TEXT(queue->card, 2, "flushbuf");
|
|
QETH_CARD_TEXT_(queue->card, 2, " q%d", queue->queue_no);
|
|
QETH_CARD_TEXT_(queue->card, 2, " idx%d", index);
|
|
QETH_CARD_TEXT_(queue->card, 2, " c%d", count);
|
|
QETH_CARD_TEXT_(queue->card, 2, " err%d", rc);
|
|
|
|
/* this must not happen under normal circumstances. if it
|
|
* happens something is really wrong -> recover */
|
|
qeth_schedule_recovery(queue->card);
|
|
return;
|
|
}
|
|
if (queue->card->options.performance_stats)
|
|
queue->card->perf_stats.bufs_sent += count;
|
|
}
|
|
|
|
static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
|
|
{
|
|
int index;
|
|
int flush_cnt = 0;
|
|
int q_was_packing = 0;
|
|
|
|
/*
|
|
* check if weed have to switch to non-packing mode or if
|
|
* we have to get a pci flag out on the queue
|
|
*/
|
|
if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
|
|
!atomic_read(&queue->set_pci_flags_count)) {
|
|
if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
|
|
QETH_OUT_Q_UNLOCKED) {
|
|
/*
|
|
* If we get in here, there was no action in
|
|
* do_send_packet. So, we check if there is a
|
|
* packing buffer to be flushed here.
|
|
*/
|
|
netif_stop_queue(queue->card->dev);
|
|
index = queue->next_buf_to_fill;
|
|
q_was_packing = queue->do_pack;
|
|
/* queue->do_pack may change */
|
|
barrier();
|
|
flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
|
|
if (!flush_cnt &&
|
|
!atomic_read(&queue->set_pci_flags_count))
|
|
flush_cnt +=
|
|
qeth_flush_buffers_on_no_pci(queue);
|
|
if (queue->card->options.performance_stats &&
|
|
q_was_packing)
|
|
queue->card->perf_stats.bufs_sent_pack +=
|
|
flush_cnt;
|
|
if (flush_cnt)
|
|
qeth_flush_buffers(queue, index, flush_cnt);
|
|
atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
|
|
}
|
|
}
|
|
}
|
|
|
|
void qeth_qdio_start_poll(struct ccw_device *ccwdev, int queue,
|
|
unsigned long card_ptr)
|
|
{
|
|
struct qeth_card *card = (struct qeth_card *)card_ptr;
|
|
|
|
if (card->dev && (card->dev->flags & IFF_UP))
|
|
napi_schedule(&card->napi);
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_qdio_start_poll);
|
|
|
|
int qeth_configure_cq(struct qeth_card *card, enum qeth_cq cq)
|
|
{
|
|
int rc;
|
|
|
|
if (card->options.cq == QETH_CQ_NOTAVAILABLE) {
|
|
rc = -1;
|
|
goto out;
|
|
} else {
|
|
if (card->options.cq == cq) {
|
|
rc = 0;
|
|
goto out;
|
|
}
|
|
|
|
if (card->state != CARD_STATE_DOWN &&
|
|
card->state != CARD_STATE_RECOVER) {
|
|
rc = -1;
|
|
goto out;
|
|
}
|
|
|
|
qeth_free_qdio_buffers(card);
|
|
card->options.cq = cq;
|
|
rc = 0;
|
|
}
|
|
out:
|
|
return rc;
|
|
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_configure_cq);
|
|
|
|
|
|
static void qeth_qdio_cq_handler(struct qeth_card *card,
|
|
unsigned int qdio_err,
|
|
unsigned int queue, int first_element, int count) {
|
|
struct qeth_qdio_q *cq = card->qdio.c_q;
|
|
int i;
|
|
int rc;
|
|
|
|
if (!qeth_is_cq(card, queue))
|
|
goto out;
|
|
|
|
QETH_CARD_TEXT_(card, 5, "qcqhe%d", first_element);
|
|
QETH_CARD_TEXT_(card, 5, "qcqhc%d", count);
|
|
QETH_CARD_TEXT_(card, 5, "qcqherr%d", qdio_err);
|
|
|
|
if (qdio_err) {
|
|
netif_stop_queue(card->dev);
|
|
qeth_schedule_recovery(card);
|
|
goto out;
|
|
}
|
|
|
|
if (card->options.performance_stats) {
|
|
card->perf_stats.cq_cnt++;
|
|
card->perf_stats.cq_start_time = qeth_get_micros();
|
|
}
|
|
|
|
for (i = first_element; i < first_element + count; ++i) {
|
|
int bidx = i % QDIO_MAX_BUFFERS_PER_Q;
|
|
struct qdio_buffer *buffer = &cq->qdio_bufs[bidx];
|
|
int e;
|
|
|
|
e = 0;
|
|
while (buffer->element[e].addr) {
|
|
unsigned long phys_aob_addr;
|
|
|
|
phys_aob_addr = (unsigned long) buffer->element[e].addr;
|
|
qeth_qdio_handle_aob(card, phys_aob_addr);
|
|
buffer->element[e].addr = NULL;
|
|
buffer->element[e].eflags = 0;
|
|
buffer->element[e].sflags = 0;
|
|
buffer->element[e].length = 0;
|
|
|
|
++e;
|
|
}
|
|
|
|
buffer->element[15].eflags = 0;
|
|
buffer->element[15].sflags = 0;
|
|
}
|
|
rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, queue,
|
|
card->qdio.c_q->next_buf_to_init,
|
|
count);
|
|
if (rc) {
|
|
dev_warn(&card->gdev->dev,
|
|
"QDIO reported an error, rc=%i\n", rc);
|
|
QETH_CARD_TEXT(card, 2, "qcqherr");
|
|
}
|
|
card->qdio.c_q->next_buf_to_init = (card->qdio.c_q->next_buf_to_init
|
|
+ count) % QDIO_MAX_BUFFERS_PER_Q;
|
|
|
|
netif_wake_queue(card->dev);
|
|
|
|
if (card->options.performance_stats) {
|
|
int delta_t = qeth_get_micros();
|
|
delta_t -= card->perf_stats.cq_start_time;
|
|
card->perf_stats.cq_time += delta_t;
|
|
}
|
|
out:
|
|
return;
|
|
}
|
|
|
|
void qeth_qdio_input_handler(struct ccw_device *ccwdev, unsigned int qdio_err,
|
|
unsigned int queue, int first_elem, int count,
|
|
unsigned long card_ptr)
|
|
{
|
|
struct qeth_card *card = (struct qeth_card *)card_ptr;
|
|
|
|
QETH_CARD_TEXT_(card, 2, "qihq%d", queue);
|
|
QETH_CARD_TEXT_(card, 2, "qiec%d", qdio_err);
|
|
|
|
if (qeth_is_cq(card, queue))
|
|
qeth_qdio_cq_handler(card, qdio_err, queue, first_elem, count);
|
|
else if (qdio_err)
|
|
qeth_schedule_recovery(card);
|
|
|
|
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_qdio_input_handler);
|
|
|
|
void qeth_qdio_output_handler(struct ccw_device *ccwdev,
|
|
unsigned int qdio_error, int __queue, int first_element,
|
|
int count, unsigned long card_ptr)
|
|
{
|
|
struct qeth_card *card = (struct qeth_card *) card_ptr;
|
|
struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
|
|
struct qeth_qdio_out_buffer *buffer;
|
|
int i;
|
|
|
|
QETH_CARD_TEXT(card, 6, "qdouhdl");
|
|
if (qdio_error & QDIO_ERROR_FATAL) {
|
|
QETH_CARD_TEXT(card, 2, "achkcond");
|
|
netif_stop_queue(card->dev);
|
|
qeth_schedule_recovery(card);
|
|
return;
|
|
}
|
|
if (card->options.performance_stats) {
|
|
card->perf_stats.outbound_handler_cnt++;
|
|
card->perf_stats.outbound_handler_start_time =
|
|
qeth_get_micros();
|
|
}
|
|
for (i = first_element; i < (first_element + count); ++i) {
|
|
int bidx = i % QDIO_MAX_BUFFERS_PER_Q;
|
|
buffer = queue->bufs[bidx];
|
|
qeth_handle_send_error(card, buffer, qdio_error);
|
|
|
|
if (queue->bufstates &&
|
|
(queue->bufstates[bidx].flags &
|
|
QDIO_OUTBUF_STATE_FLAG_PENDING) != 0) {
|
|
WARN_ON_ONCE(card->options.cq != QETH_CQ_ENABLED);
|
|
|
|
if (atomic_cmpxchg(&buffer->state,
|
|
QETH_QDIO_BUF_PRIMED,
|
|
QETH_QDIO_BUF_PENDING) ==
|
|
QETH_QDIO_BUF_PRIMED) {
|
|
qeth_notify_skbs(queue, buffer,
|
|
TX_NOTIFY_PENDING);
|
|
}
|
|
buffer->aob = queue->bufstates[bidx].aob;
|
|
QETH_CARD_TEXT_(queue->card, 5, "pel%d", bidx);
|
|
QETH_CARD_TEXT(queue->card, 5, "aob");
|
|
QETH_CARD_TEXT_(queue->card, 5, "%lx",
|
|
virt_to_phys(buffer->aob));
|
|
if (qeth_init_qdio_out_buf(queue, bidx)) {
|
|
QETH_CARD_TEXT(card, 2, "outofbuf");
|
|
qeth_schedule_recovery(card);
|
|
}
|
|
} else {
|
|
if (card->options.cq == QETH_CQ_ENABLED) {
|
|
enum iucv_tx_notify n;
|
|
|
|
n = qeth_compute_cq_notification(
|
|
buffer->buffer->element[15].sflags, 0);
|
|
qeth_notify_skbs(queue, buffer, n);
|
|
}
|
|
|
|
qeth_clear_output_buffer(queue, buffer,
|
|
QETH_QDIO_BUF_EMPTY);
|
|
}
|
|
qeth_cleanup_handled_pending(queue, bidx, 0);
|
|
}
|
|
atomic_sub(count, &queue->used_buffers);
|
|
/* check if we need to do something on this outbound queue */
|
|
if (card->info.type != QETH_CARD_TYPE_IQD)
|
|
qeth_check_outbound_queue(queue);
|
|
|
|
netif_wake_queue(queue->card->dev);
|
|
if (card->options.performance_stats)
|
|
card->perf_stats.outbound_handler_time += qeth_get_micros() -
|
|
card->perf_stats.outbound_handler_start_time;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_qdio_output_handler);
|
|
|
|
int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
|
|
int ipv, int cast_type)
|
|
{
|
|
if (!ipv && (card->info.type == QETH_CARD_TYPE_OSD ||
|
|
card->info.type == QETH_CARD_TYPE_OSX))
|
|
return card->qdio.default_out_queue;
|
|
switch (card->qdio.no_out_queues) {
|
|
case 4:
|
|
if (cast_type && card->info.is_multicast_different)
|
|
return card->info.is_multicast_different &
|
|
(card->qdio.no_out_queues - 1);
|
|
if (card->qdio.do_prio_queueing && (ipv == 4)) {
|
|
const u8 tos = ip_hdr(skb)->tos;
|
|
|
|
if (card->qdio.do_prio_queueing ==
|
|
QETH_PRIO_Q_ING_TOS) {
|
|
if (tos & IP_TOS_NOTIMPORTANT)
|
|
return 3;
|
|
if (tos & IP_TOS_HIGHRELIABILITY)
|
|
return 2;
|
|
if (tos & IP_TOS_HIGHTHROUGHPUT)
|
|
return 1;
|
|
if (tos & IP_TOS_LOWDELAY)
|
|
return 0;
|
|
}
|
|
if (card->qdio.do_prio_queueing ==
|
|
QETH_PRIO_Q_ING_PREC)
|
|
return 3 - (tos >> 6);
|
|
} else if (card->qdio.do_prio_queueing && (ipv == 6)) {
|
|
/* TODO: IPv6!!! */
|
|
}
|
|
return card->qdio.default_out_queue;
|
|
case 1: /* fallthrough for single-out-queue 1920-device */
|
|
default:
|
|
return card->qdio.default_out_queue;
|
|
}
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_get_priority_queue);
|
|
|
|
int qeth_get_elements_for_frags(struct sk_buff *skb)
|
|
{
|
|
int cnt, length, e, elements = 0;
|
|
struct skb_frag_struct *frag;
|
|
char *data;
|
|
|
|
for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) {
|
|
frag = &skb_shinfo(skb)->frags[cnt];
|
|
data = (char *)page_to_phys(skb_frag_page(frag)) +
|
|
frag->page_offset;
|
|
length = frag->size;
|
|
e = PFN_UP((unsigned long)data + length - 1) -
|
|
PFN_DOWN((unsigned long)data);
|
|
elements += e;
|
|
}
|
|
return elements;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_get_elements_for_frags);
|
|
|
|
int qeth_get_elements_no(struct qeth_card *card,
|
|
struct sk_buff *skb, int elems)
|
|
{
|
|
int dlen = skb->len - skb->data_len;
|
|
int elements_needed = PFN_UP((unsigned long)skb->data + dlen - 1) -
|
|
PFN_DOWN((unsigned long)skb->data);
|
|
|
|
elements_needed += qeth_get_elements_for_frags(skb);
|
|
|
|
if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)) {
|
|
QETH_DBF_MESSAGE(2, "Invalid size of IP packet "
|
|
"(Number=%d / Length=%d). Discarded.\n",
|
|
(elements_needed+elems), skb->len);
|
|
return 0;
|
|
}
|
|
return elements_needed;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_get_elements_no);
|
|
|
|
int qeth_hdr_chk_and_bounce(struct sk_buff *skb, struct qeth_hdr **hdr, int len)
|
|
{
|
|
int hroom, inpage, rest;
|
|
|
|
if (((unsigned long)skb->data & PAGE_MASK) !=
|
|
(((unsigned long)skb->data + len - 1) & PAGE_MASK)) {
|
|
hroom = skb_headroom(skb);
|
|
inpage = PAGE_SIZE - ((unsigned long) skb->data % PAGE_SIZE);
|
|
rest = len - inpage;
|
|
if (rest > hroom)
|
|
return 1;
|
|
memmove(skb->data - rest, skb->data, skb->len - skb->data_len);
|
|
skb->data -= rest;
|
|
skb->tail -= rest;
|
|
*hdr = (struct qeth_hdr *)skb->data;
|
|
QETH_DBF_MESSAGE(2, "skb bounce len: %d rest: %d\n", len, rest);
|
|
}
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_hdr_chk_and_bounce);
|
|
|
|
static inline void __qeth_fill_buffer(struct sk_buff *skb,
|
|
struct qdio_buffer *buffer, int is_tso, int *next_element_to_fill,
|
|
int offset)
|
|
{
|
|
int length = skb->len - skb->data_len;
|
|
int length_here;
|
|
int element;
|
|
char *data;
|
|
int first_lap, cnt;
|
|
struct skb_frag_struct *frag;
|
|
|
|
element = *next_element_to_fill;
|
|
data = skb->data;
|
|
first_lap = (is_tso == 0 ? 1 : 0);
|
|
|
|
if (offset >= 0) {
|
|
data = skb->data + offset;
|
|
length -= offset;
|
|
first_lap = 0;
|
|
}
|
|
|
|
while (length > 0) {
|
|
/* length_here is the remaining amount of data in this page */
|
|
length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
|
|
if (length < length_here)
|
|
length_here = length;
|
|
|
|
buffer->element[element].addr = data;
|
|
buffer->element[element].length = length_here;
|
|
length -= length_here;
|
|
if (!length) {
|
|
if (first_lap)
|
|
if (skb_shinfo(skb)->nr_frags)
|
|
buffer->element[element].eflags =
|
|
SBAL_EFLAGS_FIRST_FRAG;
|
|
else
|
|
buffer->element[element].eflags = 0;
|
|
else
|
|
buffer->element[element].eflags =
|
|
SBAL_EFLAGS_MIDDLE_FRAG;
|
|
} else {
|
|
if (first_lap)
|
|
buffer->element[element].eflags =
|
|
SBAL_EFLAGS_FIRST_FRAG;
|
|
else
|
|
buffer->element[element].eflags =
|
|
SBAL_EFLAGS_MIDDLE_FRAG;
|
|
}
|
|
data += length_here;
|
|
element++;
|
|
first_lap = 0;
|
|
}
|
|
|
|
for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) {
|
|
frag = &skb_shinfo(skb)->frags[cnt];
|
|
data = (char *)page_to_phys(skb_frag_page(frag)) +
|
|
frag->page_offset;
|
|
length = frag->size;
|
|
while (length > 0) {
|
|
length_here = PAGE_SIZE -
|
|
((unsigned long) data % PAGE_SIZE);
|
|
if (length < length_here)
|
|
length_here = length;
|
|
|
|
buffer->element[element].addr = data;
|
|
buffer->element[element].length = length_here;
|
|
buffer->element[element].eflags =
|
|
SBAL_EFLAGS_MIDDLE_FRAG;
|
|
length -= length_here;
|
|
data += length_here;
|
|
element++;
|
|
}
|
|
}
|
|
|
|
if (buffer->element[element - 1].eflags)
|
|
buffer->element[element - 1].eflags = SBAL_EFLAGS_LAST_FRAG;
|
|
*next_element_to_fill = element;
|
|
}
|
|
|
|
static inline int qeth_fill_buffer(struct qeth_qdio_out_q *queue,
|
|
struct qeth_qdio_out_buffer *buf, struct sk_buff *skb,
|
|
struct qeth_hdr *hdr, int offset, int hd_len)
|
|
{
|
|
struct qdio_buffer *buffer;
|
|
int flush_cnt = 0, hdr_len, large_send = 0;
|
|
|
|
buffer = buf->buffer;
|
|
atomic_inc(&skb->users);
|
|
skb_queue_tail(&buf->skb_list, skb);
|
|
|
|
/*check first on TSO ....*/
|
|
if (hdr->hdr.l3.id == QETH_HEADER_TYPE_TSO) {
|
|
int element = buf->next_element_to_fill;
|
|
|
|
hdr_len = sizeof(struct qeth_hdr_tso) +
|
|
((struct qeth_hdr_tso *)hdr)->ext.dg_hdr_len;
|
|
/*fill first buffer entry only with header information */
|
|
buffer->element[element].addr = skb->data;
|
|
buffer->element[element].length = hdr_len;
|
|
buffer->element[element].eflags = SBAL_EFLAGS_FIRST_FRAG;
|
|
buf->next_element_to_fill++;
|
|
skb->data += hdr_len;
|
|
skb->len -= hdr_len;
|
|
large_send = 1;
|
|
}
|
|
|
|
if (offset >= 0) {
|
|
int element = buf->next_element_to_fill;
|
|
buffer->element[element].addr = hdr;
|
|
buffer->element[element].length = sizeof(struct qeth_hdr) +
|
|
hd_len;
|
|
buffer->element[element].eflags = SBAL_EFLAGS_FIRST_FRAG;
|
|
buf->is_header[element] = 1;
|
|
buf->next_element_to_fill++;
|
|
}
|
|
|
|
__qeth_fill_buffer(skb, buffer, large_send,
|
|
(int *)&buf->next_element_to_fill, offset);
|
|
|
|
if (!queue->do_pack) {
|
|
QETH_CARD_TEXT(queue->card, 6, "fillbfnp");
|
|
/* set state to PRIMED -> will be flushed */
|
|
atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
|
|
flush_cnt = 1;
|
|
} else {
|
|
QETH_CARD_TEXT(queue->card, 6, "fillbfpa");
|
|
if (queue->card->options.performance_stats)
|
|
queue->card->perf_stats.skbs_sent_pack++;
|
|
if (buf->next_element_to_fill >=
|
|
QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
|
|
/*
|
|
* packed buffer if full -> set state PRIMED
|
|
* -> will be flushed
|
|
*/
|
|
atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
|
|
flush_cnt = 1;
|
|
}
|
|
}
|
|
return flush_cnt;
|
|
}
|
|
|
|
int qeth_do_send_packet_fast(struct qeth_card *card,
|
|
struct qeth_qdio_out_q *queue, struct sk_buff *skb,
|
|
struct qeth_hdr *hdr, int elements_needed,
|
|
int offset, int hd_len)
|
|
{
|
|
struct qeth_qdio_out_buffer *buffer;
|
|
int index;
|
|
|
|
/* spin until we get the queue ... */
|
|
while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
|
|
QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
|
|
/* ... now we've got the queue */
|
|
index = queue->next_buf_to_fill;
|
|
buffer = queue->bufs[queue->next_buf_to_fill];
|
|
/*
|
|
* check if buffer is empty to make sure that we do not 'overtake'
|
|
* ourselves and try to fill a buffer that is already primed
|
|
*/
|
|
if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
|
|
goto out;
|
|
queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
|
|
QDIO_MAX_BUFFERS_PER_Q;
|
|
atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
|
|
qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len);
|
|
qeth_flush_buffers(queue, index, 1);
|
|
return 0;
|
|
out:
|
|
atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
|
|
return -EBUSY;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast);
|
|
|
|
int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
|
|
struct sk_buff *skb, struct qeth_hdr *hdr,
|
|
int elements_needed)
|
|
{
|
|
struct qeth_qdio_out_buffer *buffer;
|
|
int start_index;
|
|
int flush_count = 0;
|
|
int do_pack = 0;
|
|
int tmp;
|
|
int rc = 0;
|
|
|
|
/* spin until we get the queue ... */
|
|
while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
|
|
QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
|
|
start_index = queue->next_buf_to_fill;
|
|
buffer = queue->bufs[queue->next_buf_to_fill];
|
|
/*
|
|
* check if buffer is empty to make sure that we do not 'overtake'
|
|
* ourselves and try to fill a buffer that is already primed
|
|
*/
|
|
if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
|
|
atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
|
|
return -EBUSY;
|
|
}
|
|
/* check if we need to switch packing state of this queue */
|
|
qeth_switch_to_packing_if_needed(queue);
|
|
if (queue->do_pack) {
|
|
do_pack = 1;
|
|
/* does packet fit in current buffer? */
|
|
if ((QETH_MAX_BUFFER_ELEMENTS(card) -
|
|
buffer->next_element_to_fill) < elements_needed) {
|
|
/* ... no -> set state PRIMED */
|
|
atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
|
|
flush_count++;
|
|
queue->next_buf_to_fill =
|
|
(queue->next_buf_to_fill + 1) %
|
|
QDIO_MAX_BUFFERS_PER_Q;
|
|
buffer = queue->bufs[queue->next_buf_to_fill];
|
|
/* we did a step forward, so check buffer state
|
|
* again */
|
|
if (atomic_read(&buffer->state) !=
|
|
QETH_QDIO_BUF_EMPTY) {
|
|
qeth_flush_buffers(queue, start_index,
|
|
flush_count);
|
|
atomic_set(&queue->state,
|
|
QETH_OUT_Q_UNLOCKED);
|
|
return -EBUSY;
|
|
}
|
|
}
|
|
}
|
|
tmp = qeth_fill_buffer(queue, buffer, skb, hdr, -1, 0);
|
|
queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
|
|
QDIO_MAX_BUFFERS_PER_Q;
|
|
flush_count += tmp;
|
|
if (flush_count)
|
|
qeth_flush_buffers(queue, start_index, flush_count);
|
|
else if (!atomic_read(&queue->set_pci_flags_count))
|
|
atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
|
|
/*
|
|
* queue->state will go from LOCKED -> UNLOCKED or from
|
|
* LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
|
|
* (switch packing state or flush buffer to get another pci flag out).
|
|
* In that case we will enter this loop
|
|
*/
|
|
while (atomic_dec_return(&queue->state)) {
|
|
flush_count = 0;
|
|
start_index = queue->next_buf_to_fill;
|
|
/* check if we can go back to non-packing state */
|
|
flush_count += qeth_switch_to_nonpacking_if_needed(queue);
|
|
/*
|
|
* check if we need to flush a packing buffer to get a pci
|
|
* flag out on the queue
|
|
*/
|
|
if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
|
|
flush_count += qeth_flush_buffers_on_no_pci(queue);
|
|
if (flush_count)
|
|
qeth_flush_buffers(queue, start_index, flush_count);
|
|
}
|
|
/* at this point the queue is UNLOCKED again */
|
|
if (queue->card->options.performance_stats && do_pack)
|
|
queue->card->perf_stats.bufs_sent_pack += flush_count;
|
|
|
|
return rc;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_do_send_packet);
|
|
|
|
static int qeth_setadp_promisc_mode_cb(struct qeth_card *card,
|
|
struct qeth_reply *reply, unsigned long data)
|
|
{
|
|
struct qeth_ipa_cmd *cmd;
|
|
struct qeth_ipacmd_setadpparms *setparms;
|
|
|
|
QETH_CARD_TEXT(card, 4, "prmadpcb");
|
|
|
|
cmd = (struct qeth_ipa_cmd *) data;
|
|
setparms = &(cmd->data.setadapterparms);
|
|
|
|
qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
|
|
if (cmd->hdr.return_code) {
|
|
QETH_CARD_TEXT_(card, 4, "prmrc%2.2x", cmd->hdr.return_code);
|
|
setparms->data.mode = SET_PROMISC_MODE_OFF;
|
|
}
|
|
card->info.promisc_mode = setparms->data.mode;
|
|
return 0;
|
|
}
|
|
|
|
void qeth_setadp_promisc_mode(struct qeth_card *card)
|
|
{
|
|
enum qeth_ipa_promisc_modes mode;
|
|
struct net_device *dev = card->dev;
|
|
struct qeth_cmd_buffer *iob;
|
|
struct qeth_ipa_cmd *cmd;
|
|
|
|
QETH_CARD_TEXT(card, 4, "setprom");
|
|
|
|
if (((dev->flags & IFF_PROMISC) &&
|
|
(card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
|
|
(!(dev->flags & IFF_PROMISC) &&
|
|
(card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
|
|
return;
|
|
mode = SET_PROMISC_MODE_OFF;
|
|
if (dev->flags & IFF_PROMISC)
|
|
mode = SET_PROMISC_MODE_ON;
|
|
QETH_CARD_TEXT_(card, 4, "mode:%x", mode);
|
|
|
|
iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
|
|
sizeof(struct qeth_ipacmd_setadpparms));
|
|
cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
|
|
cmd->data.setadapterparms.data.mode = mode;
|
|
qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode);
|
|
|
|
int qeth_change_mtu(struct net_device *dev, int new_mtu)
|
|
{
|
|
struct qeth_card *card;
|
|
char dbf_text[15];
|
|
|
|
card = dev->ml_priv;
|
|
|
|
QETH_CARD_TEXT(card, 4, "chgmtu");
|
|
sprintf(dbf_text, "%8x", new_mtu);
|
|
QETH_CARD_TEXT(card, 4, dbf_text);
|
|
|
|
if (new_mtu < 64)
|
|
return -EINVAL;
|
|
if (new_mtu > 65535)
|
|
return -EINVAL;
|
|
if ((!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) &&
|
|
(!qeth_mtu_is_valid(card, new_mtu)))
|
|
return -EINVAL;
|
|
dev->mtu = new_mtu;
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_change_mtu);
|
|
|
|
struct net_device_stats *qeth_get_stats(struct net_device *dev)
|
|
{
|
|
struct qeth_card *card;
|
|
|
|
card = dev->ml_priv;
|
|
|
|
QETH_CARD_TEXT(card, 5, "getstat");
|
|
|
|
return &card->stats;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_get_stats);
|
|
|
|
static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
|
|
struct qeth_reply *reply, unsigned long data)
|
|
{
|
|
struct qeth_ipa_cmd *cmd;
|
|
|
|
QETH_CARD_TEXT(card, 4, "chgmaccb");
|
|
|
|
cmd = (struct qeth_ipa_cmd *) data;
|
|
if (!card->options.layer2 ||
|
|
!(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
|
|
memcpy(card->dev->dev_addr,
|
|
&cmd->data.setadapterparms.data.change_addr.addr,
|
|
OSA_ADDR_LEN);
|
|
card->info.mac_bits |= QETH_LAYER2_MAC_READ;
|
|
}
|
|
qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
|
|
return 0;
|
|
}
|
|
|
|
int qeth_setadpparms_change_macaddr(struct qeth_card *card)
|
|
{
|
|
int rc;
|
|
struct qeth_cmd_buffer *iob;
|
|
struct qeth_ipa_cmd *cmd;
|
|
|
|
QETH_CARD_TEXT(card, 4, "chgmac");
|
|
|
|
iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS,
|
|
sizeof(struct qeth_ipacmd_setadpparms));
|
|
cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
|
|
cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
|
|
cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
|
|
memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
|
|
card->dev->dev_addr, OSA_ADDR_LEN);
|
|
rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
|
|
NULL);
|
|
return rc;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr);
|
|
|
|
static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card,
|
|
struct qeth_reply *reply, unsigned long data)
|
|
{
|
|
struct qeth_ipa_cmd *cmd;
|
|
struct qeth_set_access_ctrl *access_ctrl_req;
|
|
int fallback = *(int *)reply->param;
|
|
|
|
QETH_CARD_TEXT(card, 4, "setaccb");
|
|
|
|
cmd = (struct qeth_ipa_cmd *) data;
|
|
access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl;
|
|
QETH_DBF_TEXT_(SETUP, 2, "setaccb");
|
|
QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name);
|
|
QETH_DBF_TEXT_(SETUP, 2, "rc=%d",
|
|
cmd->data.setadapterparms.hdr.return_code);
|
|
if (cmd->data.setadapterparms.hdr.return_code !=
|
|
SET_ACCESS_CTRL_RC_SUCCESS)
|
|
QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%s,%d)==%d\n",
|
|
card->gdev->dev.kobj.name,
|
|
access_ctrl_req->subcmd_code,
|
|
cmd->data.setadapterparms.hdr.return_code);
|
|
switch (cmd->data.setadapterparms.hdr.return_code) {
|
|
case SET_ACCESS_CTRL_RC_SUCCESS:
|
|
if (card->options.isolation == ISOLATION_MODE_NONE) {
|
|
dev_info(&card->gdev->dev,
|
|
"QDIO data connection isolation is deactivated\n");
|
|
} else {
|
|
dev_info(&card->gdev->dev,
|
|
"QDIO data connection isolation is activated\n");
|
|
}
|
|
break;
|
|
case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED:
|
|
QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already "
|
|
"deactivated\n", dev_name(&card->gdev->dev));
|
|
if (fallback)
|
|
card->options.isolation = card->options.prev_isolation;
|
|
break;
|
|
case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED:
|
|
QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already"
|
|
" activated\n", dev_name(&card->gdev->dev));
|
|
if (fallback)
|
|
card->options.isolation = card->options.prev_isolation;
|
|
break;
|
|
case SET_ACCESS_CTRL_RC_NOT_SUPPORTED:
|
|
dev_err(&card->gdev->dev, "Adapter does not "
|
|
"support QDIO data connection isolation\n");
|
|
break;
|
|
case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER:
|
|
dev_err(&card->gdev->dev,
|
|
"Adapter is dedicated. "
|
|
"QDIO data connection isolation not supported\n");
|
|
if (fallback)
|
|
card->options.isolation = card->options.prev_isolation;
|
|
break;
|
|
case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF:
|
|
dev_err(&card->gdev->dev,
|
|
"TSO does not permit QDIO data connection isolation\n");
|
|
if (fallback)
|
|
card->options.isolation = card->options.prev_isolation;
|
|
break;
|
|
case SET_ACCESS_CTRL_RC_REFLREL_UNSUPPORTED:
|
|
dev_err(&card->gdev->dev, "The adjacent switch port does not "
|
|
"support reflective relay mode\n");
|
|
if (fallback)
|
|
card->options.isolation = card->options.prev_isolation;
|
|
break;
|
|
case SET_ACCESS_CTRL_RC_REFLREL_FAILED:
|
|
dev_err(&card->gdev->dev, "The reflective relay mode cannot be "
|
|
"enabled at the adjacent switch port");
|
|
if (fallback)
|
|
card->options.isolation = card->options.prev_isolation;
|
|
break;
|
|
case SET_ACCESS_CTRL_RC_REFLREL_DEACT_FAILED:
|
|
dev_warn(&card->gdev->dev, "Turning off reflective relay mode "
|
|
"at the adjacent switch failed\n");
|
|
break;
|
|
default:
|
|
/* this should never happen */
|
|
if (fallback)
|
|
card->options.isolation = card->options.prev_isolation;
|
|
break;
|
|
}
|
|
qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_setadpparms_set_access_ctrl(struct qeth_card *card,
|
|
enum qeth_ipa_isolation_modes isolation, int fallback)
|
|
{
|
|
int rc;
|
|
struct qeth_cmd_buffer *iob;
|
|
struct qeth_ipa_cmd *cmd;
|
|
struct qeth_set_access_ctrl *access_ctrl_req;
|
|
|
|
QETH_CARD_TEXT(card, 4, "setacctl");
|
|
|
|
QETH_DBF_TEXT_(SETUP, 2, "setacctl");
|
|
QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name);
|
|
|
|
iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_ACCESS_CONTROL,
|
|
sizeof(struct qeth_ipacmd_setadpparms_hdr) +
|
|
sizeof(struct qeth_set_access_ctrl));
|
|
cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
|
|
access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl;
|
|
access_ctrl_req->subcmd_code = isolation;
|
|
|
|
rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_set_access_ctrl_cb,
|
|
&fallback);
|
|
QETH_DBF_TEXT_(SETUP, 2, "rc=%d", rc);
|
|
return rc;
|
|
}
|
|
|
|
int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback)
|
|
{
|
|
int rc = 0;
|
|
|
|
QETH_CARD_TEXT(card, 4, "setactlo");
|
|
|
|
if ((card->info.type == QETH_CARD_TYPE_OSD ||
|
|
card->info.type == QETH_CARD_TYPE_OSX) &&
|
|
qeth_adp_supported(card, IPA_SETADP_SET_ACCESS_CONTROL)) {
|
|
rc = qeth_setadpparms_set_access_ctrl(card,
|
|
card->options.isolation, fallback);
|
|
if (rc) {
|
|
QETH_DBF_MESSAGE(3,
|
|
"IPA(SET_ACCESS_CTRL,%s,%d) sent failed\n",
|
|
card->gdev->dev.kobj.name,
|
|
rc);
|
|
rc = -EOPNOTSUPP;
|
|
}
|
|
} else if (card->options.isolation != ISOLATION_MODE_NONE) {
|
|
card->options.isolation = ISOLATION_MODE_NONE;
|
|
|
|
dev_err(&card->gdev->dev, "Adapter does not "
|
|
"support QDIO data connection isolation\n");
|
|
rc = -EOPNOTSUPP;
|
|
}
|
|
return rc;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online);
|
|
|
|
void qeth_tx_timeout(struct net_device *dev)
|
|
{
|
|
struct qeth_card *card;
|
|
|
|
card = dev->ml_priv;
|
|
QETH_CARD_TEXT(card, 4, "txtimeo");
|
|
card->stats.tx_errors++;
|
|
qeth_schedule_recovery(card);
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_tx_timeout);
|
|
|
|
int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
int rc = 0;
|
|
|
|
switch (regnum) {
|
|
case MII_BMCR: /* Basic mode control register */
|
|
rc = BMCR_FULLDPLX;
|
|
if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) &&
|
|
(card->info.link_type != QETH_LINK_TYPE_OSN) &&
|
|
(card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
|
|
rc |= BMCR_SPEED100;
|
|
break;
|
|
case MII_BMSR: /* Basic mode status register */
|
|
rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
|
|
BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
|
|
BMSR_100BASE4;
|
|
break;
|
|
case MII_PHYSID1: /* PHYS ID 1 */
|
|
rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
|
|
dev->dev_addr[2];
|
|
rc = (rc >> 5) & 0xFFFF;
|
|
break;
|
|
case MII_PHYSID2: /* PHYS ID 2 */
|
|
rc = (dev->dev_addr[2] << 10) & 0xFFFF;
|
|
break;
|
|
case MII_ADVERTISE: /* Advertisement control reg */
|
|
rc = ADVERTISE_ALL;
|
|
break;
|
|
case MII_LPA: /* Link partner ability reg */
|
|
rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
|
|
LPA_100BASE4 | LPA_LPACK;
|
|
break;
|
|
case MII_EXPANSION: /* Expansion register */
|
|
break;
|
|
case MII_DCOUNTER: /* disconnect counter */
|
|
break;
|
|
case MII_FCSCOUNTER: /* false carrier counter */
|
|
break;
|
|
case MII_NWAYTEST: /* N-way auto-neg test register */
|
|
break;
|
|
case MII_RERRCOUNTER: /* rx error counter */
|
|
rc = card->stats.rx_errors;
|
|
break;
|
|
case MII_SREVISION: /* silicon revision */
|
|
break;
|
|
case MII_RESV1: /* reserved 1 */
|
|
break;
|
|
case MII_LBRERROR: /* loopback, rx, bypass error */
|
|
break;
|
|
case MII_PHYADDR: /* physical address */
|
|
break;
|
|
case MII_RESV2: /* reserved 2 */
|
|
break;
|
|
case MII_TPISTATUS: /* TPI status for 10mbps */
|
|
break;
|
|
case MII_NCONFIG: /* network interface config */
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return rc;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_mdio_read);
|
|
|
|
static int qeth_send_ipa_snmp_cmd(struct qeth_card *card,
|
|
struct qeth_cmd_buffer *iob, int len,
|
|
int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
|
|
unsigned long),
|
|
void *reply_param)
|
|
{
|
|
u16 s1, s2;
|
|
|
|
QETH_CARD_TEXT(card, 4, "sendsnmp");
|
|
|
|
memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
|
|
memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
|
|
&card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
|
|
/* adjust PDU length fields in IPA_PDU_HEADER */
|
|
s1 = (u32) IPA_PDU_HEADER_SIZE + len;
|
|
s2 = (u32) len;
|
|
memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
|
|
memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
|
|
memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
|
|
memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
|
|
return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
|
|
reply_cb, reply_param);
|
|
}
|
|
|
|
static int qeth_snmp_command_cb(struct qeth_card *card,
|
|
struct qeth_reply *reply, unsigned long sdata)
|
|
{
|
|
struct qeth_ipa_cmd *cmd;
|
|
struct qeth_arp_query_info *qinfo;
|
|
struct qeth_snmp_cmd *snmp;
|
|
unsigned char *data;
|
|
__u16 data_len;
|
|
|
|
QETH_CARD_TEXT(card, 3, "snpcmdcb");
|
|
|
|
cmd = (struct qeth_ipa_cmd *) sdata;
|
|
data = (unsigned char *)((char *)cmd - reply->offset);
|
|
qinfo = (struct qeth_arp_query_info *) reply->param;
|
|
snmp = &cmd->data.setadapterparms.data.snmp;
|
|
|
|
if (cmd->hdr.return_code) {
|
|
QETH_CARD_TEXT_(card, 4, "scer1%i", cmd->hdr.return_code);
|
|
return 0;
|
|
}
|
|
if (cmd->data.setadapterparms.hdr.return_code) {
|
|
cmd->hdr.return_code =
|
|
cmd->data.setadapterparms.hdr.return_code;
|
|
QETH_CARD_TEXT_(card, 4, "scer2%i", cmd->hdr.return_code);
|
|
return 0;
|
|
}
|
|
data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data));
|
|
if (cmd->data.setadapterparms.hdr.seq_no == 1)
|
|
data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
|
|
else
|
|
data_len -= (__u16)((char *)&snmp->request - (char *)cmd);
|
|
|
|
/* check if there is enough room in userspace */
|
|
if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
|
|
QETH_CARD_TEXT_(card, 4, "scer3%i", -ENOMEM);
|
|
cmd->hdr.return_code = IPA_RC_ENOMEM;
|
|
return 0;
|
|
}
|
|
QETH_CARD_TEXT_(card, 4, "snore%i",
|
|
cmd->data.setadapterparms.hdr.used_total);
|
|
QETH_CARD_TEXT_(card, 4, "sseqn%i",
|
|
cmd->data.setadapterparms.hdr.seq_no);
|
|
/*copy entries to user buffer*/
|
|
if (cmd->data.setadapterparms.hdr.seq_no == 1) {
|
|
memcpy(qinfo->udata + qinfo->udata_offset,
|
|
(char *)snmp,
|
|
data_len + offsetof(struct qeth_snmp_cmd, data));
|
|
qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
|
|
} else {
|
|
memcpy(qinfo->udata + qinfo->udata_offset,
|
|
(char *)&snmp->request, data_len);
|
|
}
|
|
qinfo->udata_offset += data_len;
|
|
/* check if all replies received ... */
|
|
QETH_CARD_TEXT_(card, 4, "srtot%i",
|
|
cmd->data.setadapterparms.hdr.used_total);
|
|
QETH_CARD_TEXT_(card, 4, "srseq%i",
|
|
cmd->data.setadapterparms.hdr.seq_no);
|
|
if (cmd->data.setadapterparms.hdr.seq_no <
|
|
cmd->data.setadapterparms.hdr.used_total)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
int qeth_snmp_command(struct qeth_card *card, char __user *udata)
|
|
{
|
|
struct qeth_cmd_buffer *iob;
|
|
struct qeth_ipa_cmd *cmd;
|
|
struct qeth_snmp_ureq *ureq;
|
|
unsigned int req_len;
|
|
struct qeth_arp_query_info qinfo = {0, };
|
|
int rc = 0;
|
|
|
|
QETH_CARD_TEXT(card, 3, "snmpcmd");
|
|
|
|
if (card->info.guestlan)
|
|
return -EOPNOTSUPP;
|
|
|
|
if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) &&
|
|
(!card->options.layer2)) {
|
|
return -EOPNOTSUPP;
|
|
}
|
|
/* skip 4 bytes (data_len struct member) to get req_len */
|
|
if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
|
|
return -EFAULT;
|
|
if (req_len > (QETH_BUFSIZE - IPA_PDU_HEADER_SIZE -
|
|
sizeof(struct qeth_ipacmd_hdr) -
|
|
sizeof(struct qeth_ipacmd_setadpparms_hdr)))
|
|
return -EINVAL;
|
|
ureq = memdup_user(udata, req_len + sizeof(struct qeth_snmp_ureq_hdr));
|
|
if (IS_ERR(ureq)) {
|
|
QETH_CARD_TEXT(card, 2, "snmpnome");
|
|
return PTR_ERR(ureq);
|
|
}
|
|
qinfo.udata_len = ureq->hdr.data_len;
|
|
qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
|
|
if (!qinfo.udata) {
|
|
kfree(ureq);
|
|
return -ENOMEM;
|
|
}
|
|
qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
|
|
|
|
iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
|
|
QETH_SNMP_SETADP_CMDLENGTH + req_len);
|
|
cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
|
|
memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
|
|
rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
|
|
qeth_snmp_command_cb, (void *)&qinfo);
|
|
if (rc)
|
|
QETH_DBF_MESSAGE(2, "SNMP command failed on %s: (0x%x)\n",
|
|
QETH_CARD_IFNAME(card), rc);
|
|
else {
|
|
if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
|
|
rc = -EFAULT;
|
|
}
|
|
|
|
kfree(ureq);
|
|
kfree(qinfo.udata);
|
|
return rc;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_snmp_command);
|
|
|
|
static int qeth_setadpparms_query_oat_cb(struct qeth_card *card,
|
|
struct qeth_reply *reply, unsigned long data)
|
|
{
|
|
struct qeth_ipa_cmd *cmd;
|
|
struct qeth_qoat_priv *priv;
|
|
char *resdata;
|
|
int resdatalen;
|
|
|
|
QETH_CARD_TEXT(card, 3, "qoatcb");
|
|
|
|
cmd = (struct qeth_ipa_cmd *)data;
|
|
priv = (struct qeth_qoat_priv *)reply->param;
|
|
resdatalen = cmd->data.setadapterparms.hdr.cmdlength;
|
|
resdata = (char *)data + 28;
|
|
|
|
if (resdatalen > (priv->buffer_len - priv->response_len)) {
|
|
cmd->hdr.return_code = IPA_RC_FFFF;
|
|
return 0;
|
|
}
|
|
|
|
memcpy((priv->buffer + priv->response_len), resdata,
|
|
resdatalen);
|
|
priv->response_len += resdatalen;
|
|
|
|
if (cmd->data.setadapterparms.hdr.seq_no <
|
|
cmd->data.setadapterparms.hdr.used_total)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
int qeth_query_oat_command(struct qeth_card *card, char __user *udata)
|
|
{
|
|
int rc = 0;
|
|
struct qeth_cmd_buffer *iob;
|
|
struct qeth_ipa_cmd *cmd;
|
|
struct qeth_query_oat *oat_req;
|
|
struct qeth_query_oat_data oat_data;
|
|
struct qeth_qoat_priv priv;
|
|
void __user *tmp;
|
|
|
|
QETH_CARD_TEXT(card, 3, "qoatcmd");
|
|
|
|
if (!qeth_adp_supported(card, IPA_SETADP_QUERY_OAT)) {
|
|
rc = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
if (copy_from_user(&oat_data, udata,
|
|
sizeof(struct qeth_query_oat_data))) {
|
|
rc = -EFAULT;
|
|
goto out;
|
|
}
|
|
|
|
priv.buffer_len = oat_data.buffer_len;
|
|
priv.response_len = 0;
|
|
priv.buffer = kzalloc(oat_data.buffer_len, GFP_KERNEL);
|
|
if (!priv.buffer) {
|
|
rc = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_OAT,
|
|
sizeof(struct qeth_ipacmd_setadpparms_hdr) +
|
|
sizeof(struct qeth_query_oat));
|
|
cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
|
|
oat_req = &cmd->data.setadapterparms.data.query_oat;
|
|
oat_req->subcmd_code = oat_data.command;
|
|
|
|
rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_query_oat_cb,
|
|
&priv);
|
|
if (!rc) {
|
|
if (is_compat_task())
|
|
tmp = compat_ptr(oat_data.ptr);
|
|
else
|
|
tmp = (void __user *)(unsigned long)oat_data.ptr;
|
|
|
|
if (copy_to_user(tmp, priv.buffer,
|
|
priv.response_len)) {
|
|
rc = -EFAULT;
|
|
goto out_free;
|
|
}
|
|
|
|
oat_data.response_len = priv.response_len;
|
|
|
|
if (copy_to_user(udata, &oat_data,
|
|
sizeof(struct qeth_query_oat_data)))
|
|
rc = -EFAULT;
|
|
} else
|
|
if (rc == IPA_RC_FFFF)
|
|
rc = -EFAULT;
|
|
|
|
out_free:
|
|
kfree(priv.buffer);
|
|
out:
|
|
return rc;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_query_oat_command);
|
|
|
|
static int qeth_query_card_info_cb(struct qeth_card *card,
|
|
struct qeth_reply *reply, unsigned long data)
|
|
{
|
|
struct qeth_ipa_cmd *cmd;
|
|
struct qeth_query_card_info *card_info;
|
|
struct carrier_info *carrier_info;
|
|
|
|
QETH_CARD_TEXT(card, 2, "qcrdincb");
|
|
carrier_info = (struct carrier_info *)reply->param;
|
|
cmd = (struct qeth_ipa_cmd *)data;
|
|
card_info = &cmd->data.setadapterparms.data.card_info;
|
|
if (cmd->data.setadapterparms.hdr.return_code == 0) {
|
|
carrier_info->card_type = card_info->card_type;
|
|
carrier_info->port_mode = card_info->port_mode;
|
|
carrier_info->port_speed = card_info->port_speed;
|
|
}
|
|
|
|
qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
|
|
return 0;
|
|
}
|
|
|
|
int qeth_query_card_info(struct qeth_card *card,
|
|
struct carrier_info *carrier_info)
|
|
{
|
|
struct qeth_cmd_buffer *iob;
|
|
|
|
QETH_CARD_TEXT(card, 2, "qcrdinfo");
|
|
if (!qeth_adp_supported(card, IPA_SETADP_QUERY_CARD_INFO))
|
|
return -EOPNOTSUPP;
|
|
iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_CARD_INFO,
|
|
sizeof(struct qeth_ipacmd_setadpparms_hdr));
|
|
return qeth_send_ipa_cmd(card, iob, qeth_query_card_info_cb,
|
|
(void *)carrier_info);
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_query_card_info);
|
|
|
|
static inline int qeth_get_qdio_q_format(struct qeth_card *card)
|
|
{
|
|
switch (card->info.type) {
|
|
case QETH_CARD_TYPE_IQD:
|
|
return 2;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static void qeth_determine_capabilities(struct qeth_card *card)
|
|
{
|
|
int rc;
|
|
int length;
|
|
char *prcd;
|
|
struct ccw_device *ddev;
|
|
int ddev_offline = 0;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "detcapab");
|
|
ddev = CARD_DDEV(card);
|
|
if (!ddev->online) {
|
|
ddev_offline = 1;
|
|
rc = ccw_device_set_online(ddev);
|
|
if (rc) {
|
|
QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
rc = qeth_read_conf_data(card, (void **) &prcd, &length);
|
|
if (rc) {
|
|
QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n",
|
|
dev_name(&card->gdev->dev), rc);
|
|
QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
|
|
goto out_offline;
|
|
}
|
|
qeth_configure_unitaddr(card, prcd);
|
|
if (ddev_offline)
|
|
qeth_configure_blkt_default(card, prcd);
|
|
kfree(prcd);
|
|
|
|
rc = qdio_get_ssqd_desc(ddev, &card->ssqd);
|
|
if (rc)
|
|
QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
|
|
|
|
QETH_DBF_TEXT_(SETUP, 2, "qfmt%d", card->ssqd.qfmt);
|
|
QETH_DBF_TEXT_(SETUP, 2, "%d", card->ssqd.qdioac1);
|
|
QETH_DBF_TEXT_(SETUP, 2, "%d", card->ssqd.qdioac3);
|
|
QETH_DBF_TEXT_(SETUP, 2, "icnt%d", card->ssqd.icnt);
|
|
if (!((card->ssqd.qfmt != QDIO_IQDIO_QFMT) ||
|
|
((card->ssqd.qdioac1 & CHSC_AC1_INITIATE_INPUTQ) == 0) ||
|
|
((card->ssqd.qdioac3 & CHSC_AC3_FORMAT2_CQ_AVAILABLE) == 0))) {
|
|
dev_info(&card->gdev->dev,
|
|
"Completion Queueing supported\n");
|
|
} else {
|
|
card->options.cq = QETH_CQ_NOTAVAILABLE;
|
|
}
|
|
|
|
|
|
out_offline:
|
|
if (ddev_offline == 1)
|
|
ccw_device_set_offline(ddev);
|
|
out:
|
|
return;
|
|
}
|
|
|
|
static inline void qeth_qdio_establish_cq(struct qeth_card *card,
|
|
struct qdio_buffer **in_sbal_ptrs,
|
|
void (**queue_start_poll) (struct ccw_device *, int, unsigned long)) {
|
|
int i;
|
|
|
|
if (card->options.cq == QETH_CQ_ENABLED) {
|
|
int offset = QDIO_MAX_BUFFERS_PER_Q *
|
|
(card->qdio.no_in_queues - 1);
|
|
i = QDIO_MAX_BUFFERS_PER_Q * (card->qdio.no_in_queues - 1);
|
|
for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) {
|
|
in_sbal_ptrs[offset + i] = (struct qdio_buffer *)
|
|
virt_to_phys(card->qdio.c_q->bufs[i].buffer);
|
|
}
|
|
|
|
queue_start_poll[card->qdio.no_in_queues - 1] = NULL;
|
|
}
|
|
}
|
|
|
|
static int qeth_qdio_establish(struct qeth_card *card)
|
|
{
|
|
struct qdio_initialize init_data;
|
|
char *qib_param_field;
|
|
struct qdio_buffer **in_sbal_ptrs;
|
|
void (**queue_start_poll) (struct ccw_device *, int, unsigned long);
|
|
struct qdio_buffer **out_sbal_ptrs;
|
|
int i, j, k;
|
|
int rc = 0;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "qdioest");
|
|
|
|
qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
|
|
GFP_KERNEL);
|
|
if (!qib_param_field) {
|
|
rc = -ENOMEM;
|
|
goto out_free_nothing;
|
|
}
|
|
|
|
qeth_create_qib_param_field(card, qib_param_field);
|
|
qeth_create_qib_param_field_blkt(card, qib_param_field);
|
|
|
|
in_sbal_ptrs = kzalloc(card->qdio.no_in_queues *
|
|
QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
|
|
GFP_KERNEL);
|
|
if (!in_sbal_ptrs) {
|
|
rc = -ENOMEM;
|
|
goto out_free_qib_param;
|
|
}
|
|
for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) {
|
|
in_sbal_ptrs[i] = (struct qdio_buffer *)
|
|
virt_to_phys(card->qdio.in_q->bufs[i].buffer);
|
|
}
|
|
|
|
queue_start_poll = kzalloc(sizeof(void *) * card->qdio.no_in_queues,
|
|
GFP_KERNEL);
|
|
if (!queue_start_poll) {
|
|
rc = -ENOMEM;
|
|
goto out_free_in_sbals;
|
|
}
|
|
for (i = 0; i < card->qdio.no_in_queues; ++i)
|
|
queue_start_poll[i] = card->discipline->start_poll;
|
|
|
|
qeth_qdio_establish_cq(card, in_sbal_ptrs, queue_start_poll);
|
|
|
|
out_sbal_ptrs =
|
|
kzalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
|
|
sizeof(void *), GFP_KERNEL);
|
|
if (!out_sbal_ptrs) {
|
|
rc = -ENOMEM;
|
|
goto out_free_queue_start_poll;
|
|
}
|
|
for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
|
|
for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) {
|
|
out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys(
|
|
card->qdio.out_qs[i]->bufs[j]->buffer);
|
|
}
|
|
|
|
memset(&init_data, 0, sizeof(struct qdio_initialize));
|
|
init_data.cdev = CARD_DDEV(card);
|
|
init_data.q_format = qeth_get_qdio_q_format(card);
|
|
init_data.qib_param_field_format = 0;
|
|
init_data.qib_param_field = qib_param_field;
|
|
init_data.no_input_qs = card->qdio.no_in_queues;
|
|
init_data.no_output_qs = card->qdio.no_out_queues;
|
|
init_data.input_handler = card->discipline->input_handler;
|
|
init_data.output_handler = card->discipline->output_handler;
|
|
init_data.queue_start_poll_array = queue_start_poll;
|
|
init_data.int_parm = (unsigned long) card;
|
|
init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
|
|
init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
|
|
init_data.output_sbal_state_array = card->qdio.out_bufstates;
|
|
init_data.scan_threshold =
|
|
(card->info.type == QETH_CARD_TYPE_IQD) ? 1 : 32;
|
|
|
|
if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
|
|
QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) {
|
|
rc = qdio_allocate(&init_data);
|
|
if (rc) {
|
|
atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
|
|
goto out;
|
|
}
|
|
rc = qdio_establish(&init_data);
|
|
if (rc) {
|
|
atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
|
|
qdio_free(CARD_DDEV(card));
|
|
}
|
|
}
|
|
|
|
switch (card->options.cq) {
|
|
case QETH_CQ_ENABLED:
|
|
dev_info(&card->gdev->dev, "Completion Queue support enabled");
|
|
break;
|
|
case QETH_CQ_DISABLED:
|
|
dev_info(&card->gdev->dev, "Completion Queue support disabled");
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
out:
|
|
kfree(out_sbal_ptrs);
|
|
out_free_queue_start_poll:
|
|
kfree(queue_start_poll);
|
|
out_free_in_sbals:
|
|
kfree(in_sbal_ptrs);
|
|
out_free_qib_param:
|
|
kfree(qib_param_field);
|
|
out_free_nothing:
|
|
return rc;
|
|
}
|
|
|
|
static void qeth_core_free_card(struct qeth_card *card)
|
|
{
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "freecrd");
|
|
QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
|
|
qeth_clean_channel(&card->read);
|
|
qeth_clean_channel(&card->write);
|
|
if (card->dev)
|
|
free_netdev(card->dev);
|
|
kfree(card->ip_tbd_list);
|
|
qeth_free_qdio_buffers(card);
|
|
unregister_service_level(&card->qeth_service_level);
|
|
kfree(card);
|
|
}
|
|
|
|
void qeth_trace_features(struct qeth_card *card)
|
|
{
|
|
QETH_CARD_TEXT(card, 2, "features");
|
|
QETH_CARD_TEXT_(card, 2, "%x", card->options.ipa4.supported_funcs);
|
|
QETH_CARD_TEXT_(card, 2, "%x", card->options.ipa4.enabled_funcs);
|
|
QETH_CARD_TEXT_(card, 2, "%x", card->options.ipa6.supported_funcs);
|
|
QETH_CARD_TEXT_(card, 2, "%x", card->options.ipa6.enabled_funcs);
|
|
QETH_CARD_TEXT_(card, 2, "%x", card->options.adp.supported_funcs);
|
|
QETH_CARD_TEXT_(card, 2, "%x", card->options.adp.enabled_funcs);
|
|
QETH_CARD_TEXT_(card, 2, "%x", card->info.diagass_support);
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_trace_features);
|
|
|
|
static struct ccw_device_id qeth_ids[] = {
|
|
{CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01),
|
|
.driver_info = QETH_CARD_TYPE_OSD},
|
|
{CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05),
|
|
.driver_info = QETH_CARD_TYPE_IQD},
|
|
{CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06),
|
|
.driver_info = QETH_CARD_TYPE_OSN},
|
|
{CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03),
|
|
.driver_info = QETH_CARD_TYPE_OSM},
|
|
{CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02),
|
|
.driver_info = QETH_CARD_TYPE_OSX},
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(ccw, qeth_ids);
|
|
|
|
static struct ccw_driver qeth_ccw_driver = {
|
|
.driver = {
|
|
.owner = THIS_MODULE,
|
|
.name = "qeth",
|
|
},
|
|
.ids = qeth_ids,
|
|
.probe = ccwgroup_probe_ccwdev,
|
|
.remove = ccwgroup_remove_ccwdev,
|
|
};
|
|
|
|
int qeth_core_hardsetup_card(struct qeth_card *card)
|
|
{
|
|
int retries = 3;
|
|
int rc;
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "hrdsetup");
|
|
atomic_set(&card->force_alloc_skb, 0);
|
|
qeth_update_from_chp_desc(card);
|
|
retry:
|
|
if (retries < 3)
|
|
QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n",
|
|
dev_name(&card->gdev->dev));
|
|
rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
|
|
ccw_device_set_offline(CARD_DDEV(card));
|
|
ccw_device_set_offline(CARD_WDEV(card));
|
|
ccw_device_set_offline(CARD_RDEV(card));
|
|
qdio_free(CARD_DDEV(card));
|
|
rc = ccw_device_set_online(CARD_RDEV(card));
|
|
if (rc)
|
|
goto retriable;
|
|
rc = ccw_device_set_online(CARD_WDEV(card));
|
|
if (rc)
|
|
goto retriable;
|
|
rc = ccw_device_set_online(CARD_DDEV(card));
|
|
if (rc)
|
|
goto retriable;
|
|
retriable:
|
|
if (rc == -ERESTARTSYS) {
|
|
QETH_DBF_TEXT(SETUP, 2, "break1");
|
|
return rc;
|
|
} else if (rc) {
|
|
QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
|
|
if (--retries < 0)
|
|
goto out;
|
|
else
|
|
goto retry;
|
|
}
|
|
qeth_determine_capabilities(card);
|
|
qeth_init_tokens(card);
|
|
qeth_init_func_level(card);
|
|
rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
|
|
if (rc == -ERESTARTSYS) {
|
|
QETH_DBF_TEXT(SETUP, 2, "break2");
|
|
return rc;
|
|
} else if (rc) {
|
|
QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
|
|
if (--retries < 0)
|
|
goto out;
|
|
else
|
|
goto retry;
|
|
}
|
|
rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
|
|
if (rc == -ERESTARTSYS) {
|
|
QETH_DBF_TEXT(SETUP, 2, "break3");
|
|
return rc;
|
|
} else if (rc) {
|
|
QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
|
|
if (--retries < 0)
|
|
goto out;
|
|
else
|
|
goto retry;
|
|
}
|
|
card->read_or_write_problem = 0;
|
|
rc = qeth_mpc_initialize(card);
|
|
if (rc) {
|
|
QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
|
|
goto out;
|
|
}
|
|
|
|
card->options.ipa4.supported_funcs = 0;
|
|
card->options.adp.supported_funcs = 0;
|
|
card->options.sbp.supported_funcs = 0;
|
|
card->info.diagass_support = 0;
|
|
qeth_query_ipassists(card, QETH_PROT_IPV4);
|
|
if (qeth_is_supported(card, IPA_SETADAPTERPARMS))
|
|
qeth_query_setadapterparms(card);
|
|
if (qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST))
|
|
qeth_query_setdiagass(card);
|
|
return 0;
|
|
out:
|
|
dev_warn(&card->gdev->dev, "The qeth device driver failed to recover "
|
|
"an error on the device\n");
|
|
QETH_DBF_MESSAGE(2, "%s Initialization in hardsetup failed! rc=%d\n",
|
|
dev_name(&card->gdev->dev), rc);
|
|
return rc;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card);
|
|
|
|
static inline int qeth_create_skb_frag(struct qeth_qdio_buffer *qethbuffer,
|
|
struct qdio_buffer_element *element,
|
|
struct sk_buff **pskb, int offset, int *pfrag, int data_len)
|
|
{
|
|
struct page *page = virt_to_page(element->addr);
|
|
if (*pskb == NULL) {
|
|
if (qethbuffer->rx_skb) {
|
|
/* only if qeth_card.options.cq == QETH_CQ_ENABLED */
|
|
*pskb = qethbuffer->rx_skb;
|
|
qethbuffer->rx_skb = NULL;
|
|
} else {
|
|
*pskb = dev_alloc_skb(QETH_RX_PULL_LEN + ETH_HLEN);
|
|
if (!(*pskb))
|
|
return -ENOMEM;
|
|
}
|
|
|
|
skb_reserve(*pskb, ETH_HLEN);
|
|
if (data_len <= QETH_RX_PULL_LEN) {
|
|
memcpy(skb_put(*pskb, data_len), element->addr + offset,
|
|
data_len);
|
|
} else {
|
|
get_page(page);
|
|
memcpy(skb_put(*pskb, QETH_RX_PULL_LEN),
|
|
element->addr + offset, QETH_RX_PULL_LEN);
|
|
skb_fill_page_desc(*pskb, *pfrag, page,
|
|
offset + QETH_RX_PULL_LEN,
|
|
data_len - QETH_RX_PULL_LEN);
|
|
(*pskb)->data_len += data_len - QETH_RX_PULL_LEN;
|
|
(*pskb)->len += data_len - QETH_RX_PULL_LEN;
|
|
(*pskb)->truesize += data_len - QETH_RX_PULL_LEN;
|
|
(*pfrag)++;
|
|
}
|
|
} else {
|
|
get_page(page);
|
|
skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len);
|
|
(*pskb)->data_len += data_len;
|
|
(*pskb)->len += data_len;
|
|
(*pskb)->truesize += data_len;
|
|
(*pfrag)++;
|
|
}
|
|
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card,
|
|
struct qeth_qdio_buffer *qethbuffer,
|
|
struct qdio_buffer_element **__element, int *__offset,
|
|
struct qeth_hdr **hdr)
|
|
{
|
|
struct qdio_buffer_element *element = *__element;
|
|
struct qdio_buffer *buffer = qethbuffer->buffer;
|
|
int offset = *__offset;
|
|
struct sk_buff *skb = NULL;
|
|
int skb_len = 0;
|
|
void *data_ptr;
|
|
int data_len;
|
|
int headroom = 0;
|
|
int use_rx_sg = 0;
|
|
int frag = 0;
|
|
|
|
/* qeth_hdr must not cross element boundaries */
|
|
if (element->length < offset + sizeof(struct qeth_hdr)) {
|
|
if (qeth_is_last_sbale(element))
|
|
return NULL;
|
|
element++;
|
|
offset = 0;
|
|
if (element->length < sizeof(struct qeth_hdr))
|
|
return NULL;
|
|
}
|
|
*hdr = element->addr + offset;
|
|
|
|
offset += sizeof(struct qeth_hdr);
|
|
switch ((*hdr)->hdr.l2.id) {
|
|
case QETH_HEADER_TYPE_LAYER2:
|
|
skb_len = (*hdr)->hdr.l2.pkt_length;
|
|
break;
|
|
case QETH_HEADER_TYPE_LAYER3:
|
|
skb_len = (*hdr)->hdr.l3.length;
|
|
headroom = ETH_HLEN;
|
|
break;
|
|
case QETH_HEADER_TYPE_OSN:
|
|
skb_len = (*hdr)->hdr.osn.pdu_length;
|
|
headroom = sizeof(struct qeth_hdr);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (!skb_len)
|
|
return NULL;
|
|
|
|
if (((skb_len >= card->options.rx_sg_cb) &&
|
|
(!(card->info.type == QETH_CARD_TYPE_OSN)) &&
|
|
(!atomic_read(&card->force_alloc_skb))) ||
|
|
(card->options.cq == QETH_CQ_ENABLED)) {
|
|
use_rx_sg = 1;
|
|
} else {
|
|
skb = dev_alloc_skb(skb_len + headroom);
|
|
if (!skb)
|
|
goto no_mem;
|
|
if (headroom)
|
|
skb_reserve(skb, headroom);
|
|
}
|
|
|
|
data_ptr = element->addr + offset;
|
|
while (skb_len) {
|
|
data_len = min(skb_len, (int)(element->length - offset));
|
|
if (data_len) {
|
|
if (use_rx_sg) {
|
|
if (qeth_create_skb_frag(qethbuffer, element,
|
|
&skb, offset, &frag, data_len))
|
|
goto no_mem;
|
|
} else {
|
|
memcpy(skb_put(skb, data_len), data_ptr,
|
|
data_len);
|
|
}
|
|
}
|
|
skb_len -= data_len;
|
|
if (skb_len) {
|
|
if (qeth_is_last_sbale(element)) {
|
|
QETH_CARD_TEXT(card, 4, "unexeob");
|
|
QETH_CARD_HEX(card, 2, buffer, sizeof(void *));
|
|
dev_kfree_skb_any(skb);
|
|
card->stats.rx_errors++;
|
|
return NULL;
|
|
}
|
|
element++;
|
|
offset = 0;
|
|
data_ptr = element->addr;
|
|
} else {
|
|
offset += data_len;
|
|
}
|
|
}
|
|
*__element = element;
|
|
*__offset = offset;
|
|
if (use_rx_sg && card->options.performance_stats) {
|
|
card->perf_stats.sg_skbs_rx++;
|
|
card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags;
|
|
}
|
|
return skb;
|
|
no_mem:
|
|
if (net_ratelimit()) {
|
|
QETH_CARD_TEXT(card, 2, "noskbmem");
|
|
}
|
|
card->stats.rx_dropped++;
|
|
return NULL;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_core_get_next_skb);
|
|
|
|
static void qeth_unregister_dbf_views(void)
|
|
{
|
|
int x;
|
|
for (x = 0; x < QETH_DBF_INFOS; x++) {
|
|
debug_unregister(qeth_dbf[x].id);
|
|
qeth_dbf[x].id = NULL;
|
|
}
|
|
}
|
|
|
|
void qeth_dbf_longtext(debug_info_t *id, int level, char *fmt, ...)
|
|
{
|
|
char dbf_txt_buf[32];
|
|
va_list args;
|
|
|
|
if (!debug_level_enabled(id, level))
|
|
return;
|
|
va_start(args, fmt);
|
|
vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args);
|
|
va_end(args);
|
|
debug_text_event(id, level, dbf_txt_buf);
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_dbf_longtext);
|
|
|
|
static int qeth_register_dbf_views(void)
|
|
{
|
|
int ret;
|
|
int x;
|
|
|
|
for (x = 0; x < QETH_DBF_INFOS; x++) {
|
|
/* register the areas */
|
|
qeth_dbf[x].id = debug_register(qeth_dbf[x].name,
|
|
qeth_dbf[x].pages,
|
|
qeth_dbf[x].areas,
|
|
qeth_dbf[x].len);
|
|
if (qeth_dbf[x].id == NULL) {
|
|
qeth_unregister_dbf_views();
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* register a view */
|
|
ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view);
|
|
if (ret) {
|
|
qeth_unregister_dbf_views();
|
|
return ret;
|
|
}
|
|
|
|
/* set a passing level */
|
|
debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int qeth_core_load_discipline(struct qeth_card *card,
|
|
enum qeth_discipline_id discipline)
|
|
{
|
|
int rc = 0;
|
|
mutex_lock(&qeth_mod_mutex);
|
|
switch (discipline) {
|
|
case QETH_DISCIPLINE_LAYER3:
|
|
card->discipline = try_then_request_module(
|
|
symbol_get(qeth_l3_discipline), "qeth_l3");
|
|
break;
|
|
case QETH_DISCIPLINE_LAYER2:
|
|
card->discipline = try_then_request_module(
|
|
symbol_get(qeth_l2_discipline), "qeth_l2");
|
|
break;
|
|
}
|
|
if (!card->discipline) {
|
|
dev_err(&card->gdev->dev, "There is no kernel module to "
|
|
"support discipline %d\n", discipline);
|
|
rc = -EINVAL;
|
|
}
|
|
mutex_unlock(&qeth_mod_mutex);
|
|
return rc;
|
|
}
|
|
|
|
void qeth_core_free_discipline(struct qeth_card *card)
|
|
{
|
|
if (card->options.layer2)
|
|
symbol_put(qeth_l2_discipline);
|
|
else
|
|
symbol_put(qeth_l3_discipline);
|
|
card->discipline = NULL;
|
|
}
|
|
|
|
static const struct device_type qeth_generic_devtype = {
|
|
.name = "qeth_generic",
|
|
.groups = qeth_generic_attr_groups,
|
|
};
|
|
static const struct device_type qeth_osn_devtype = {
|
|
.name = "qeth_osn",
|
|
.groups = qeth_osn_attr_groups,
|
|
};
|
|
|
|
#define DBF_NAME_LEN 20
|
|
|
|
struct qeth_dbf_entry {
|
|
char dbf_name[DBF_NAME_LEN];
|
|
debug_info_t *dbf_info;
|
|
struct list_head dbf_list;
|
|
};
|
|
|
|
static LIST_HEAD(qeth_dbf_list);
|
|
static DEFINE_MUTEX(qeth_dbf_list_mutex);
|
|
|
|
static debug_info_t *qeth_get_dbf_entry(char *name)
|
|
{
|
|
struct qeth_dbf_entry *entry;
|
|
debug_info_t *rc = NULL;
|
|
|
|
mutex_lock(&qeth_dbf_list_mutex);
|
|
list_for_each_entry(entry, &qeth_dbf_list, dbf_list) {
|
|
if (strcmp(entry->dbf_name, name) == 0) {
|
|
rc = entry->dbf_info;
|
|
break;
|
|
}
|
|
}
|
|
mutex_unlock(&qeth_dbf_list_mutex);
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_add_dbf_entry(struct qeth_card *card, char *name)
|
|
{
|
|
struct qeth_dbf_entry *new_entry;
|
|
|
|
card->debug = debug_register(name, 2, 1, 8);
|
|
if (!card->debug) {
|
|
QETH_DBF_TEXT_(SETUP, 2, "%s", "qcdbf");
|
|
goto err;
|
|
}
|
|
if (debug_register_view(card->debug, &debug_hex_ascii_view))
|
|
goto err_dbg;
|
|
new_entry = kzalloc(sizeof(struct qeth_dbf_entry), GFP_KERNEL);
|
|
if (!new_entry)
|
|
goto err_dbg;
|
|
strncpy(new_entry->dbf_name, name, DBF_NAME_LEN);
|
|
new_entry->dbf_info = card->debug;
|
|
mutex_lock(&qeth_dbf_list_mutex);
|
|
list_add(&new_entry->dbf_list, &qeth_dbf_list);
|
|
mutex_unlock(&qeth_dbf_list_mutex);
|
|
|
|
return 0;
|
|
|
|
err_dbg:
|
|
debug_unregister(card->debug);
|
|
err:
|
|
return -ENOMEM;
|
|
}
|
|
|
|
static void qeth_clear_dbf_list(void)
|
|
{
|
|
struct qeth_dbf_entry *entry, *tmp;
|
|
|
|
mutex_lock(&qeth_dbf_list_mutex);
|
|
list_for_each_entry_safe(entry, tmp, &qeth_dbf_list, dbf_list) {
|
|
list_del(&entry->dbf_list);
|
|
debug_unregister(entry->dbf_info);
|
|
kfree(entry);
|
|
}
|
|
mutex_unlock(&qeth_dbf_list_mutex);
|
|
}
|
|
|
|
static int qeth_core_probe_device(struct ccwgroup_device *gdev)
|
|
{
|
|
struct qeth_card *card;
|
|
struct device *dev;
|
|
int rc;
|
|
unsigned long flags;
|
|
char dbf_name[DBF_NAME_LEN];
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "probedev");
|
|
|
|
dev = &gdev->dev;
|
|
if (!get_device(dev))
|
|
return -ENODEV;
|
|
|
|
QETH_DBF_TEXT_(SETUP, 2, "%s", dev_name(&gdev->dev));
|
|
|
|
card = qeth_alloc_card();
|
|
if (!card) {
|
|
QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM);
|
|
rc = -ENOMEM;
|
|
goto err_dev;
|
|
}
|
|
|
|
snprintf(dbf_name, sizeof(dbf_name), "qeth_card_%s",
|
|
dev_name(&gdev->dev));
|
|
card->debug = qeth_get_dbf_entry(dbf_name);
|
|
if (!card->debug) {
|
|
rc = qeth_add_dbf_entry(card, dbf_name);
|
|
if (rc)
|
|
goto err_card;
|
|
}
|
|
|
|
card->read.ccwdev = gdev->cdev[0];
|
|
card->write.ccwdev = gdev->cdev[1];
|
|
card->data.ccwdev = gdev->cdev[2];
|
|
dev_set_drvdata(&gdev->dev, card);
|
|
card->gdev = gdev;
|
|
gdev->cdev[0]->handler = qeth_irq;
|
|
gdev->cdev[1]->handler = qeth_irq;
|
|
gdev->cdev[2]->handler = qeth_irq;
|
|
|
|
rc = qeth_determine_card_type(card);
|
|
if (rc) {
|
|
QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
|
|
goto err_card;
|
|
}
|
|
rc = qeth_setup_card(card);
|
|
if (rc) {
|
|
QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
|
|
goto err_card;
|
|
}
|
|
|
|
if (card->info.type == QETH_CARD_TYPE_OSN)
|
|
gdev->dev.type = &qeth_osn_devtype;
|
|
else
|
|
gdev->dev.type = &qeth_generic_devtype;
|
|
|
|
switch (card->info.type) {
|
|
case QETH_CARD_TYPE_OSN:
|
|
case QETH_CARD_TYPE_OSM:
|
|
rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2);
|
|
if (rc)
|
|
goto err_card;
|
|
rc = card->discipline->setup(card->gdev);
|
|
if (rc)
|
|
goto err_disc;
|
|
case QETH_CARD_TYPE_OSD:
|
|
case QETH_CARD_TYPE_OSX:
|
|
default:
|
|
break;
|
|
}
|
|
|
|
write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
|
|
list_add_tail(&card->list, &qeth_core_card_list.list);
|
|
write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
|
|
|
|
qeth_determine_capabilities(card);
|
|
return 0;
|
|
|
|
err_disc:
|
|
qeth_core_free_discipline(card);
|
|
err_card:
|
|
qeth_core_free_card(card);
|
|
err_dev:
|
|
put_device(dev);
|
|
return rc;
|
|
}
|
|
|
|
static void qeth_core_remove_device(struct ccwgroup_device *gdev)
|
|
{
|
|
unsigned long flags;
|
|
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
|
|
|
|
QETH_DBF_TEXT(SETUP, 2, "removedv");
|
|
|
|
if (card->discipline) {
|
|
card->discipline->remove(gdev);
|
|
qeth_core_free_discipline(card);
|
|
}
|
|
|
|
write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
|
|
list_del(&card->list);
|
|
write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
|
|
qeth_core_free_card(card);
|
|
dev_set_drvdata(&gdev->dev, NULL);
|
|
put_device(&gdev->dev);
|
|
return;
|
|
}
|
|
|
|
static int qeth_core_set_online(struct ccwgroup_device *gdev)
|
|
{
|
|
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
|
|
int rc = 0;
|
|
int def_discipline;
|
|
|
|
if (!card->discipline) {
|
|
if (card->info.type == QETH_CARD_TYPE_IQD)
|
|
def_discipline = QETH_DISCIPLINE_LAYER3;
|
|
else
|
|
def_discipline = QETH_DISCIPLINE_LAYER2;
|
|
rc = qeth_core_load_discipline(card, def_discipline);
|
|
if (rc)
|
|
goto err;
|
|
rc = card->discipline->setup(card->gdev);
|
|
if (rc)
|
|
goto err;
|
|
}
|
|
rc = card->discipline->set_online(gdev);
|
|
err:
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_core_set_offline(struct ccwgroup_device *gdev)
|
|
{
|
|
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
|
|
return card->discipline->set_offline(gdev);
|
|
}
|
|
|
|
static void qeth_core_shutdown(struct ccwgroup_device *gdev)
|
|
{
|
|
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
|
|
if (card->discipline && card->discipline->shutdown)
|
|
card->discipline->shutdown(gdev);
|
|
}
|
|
|
|
static int qeth_core_prepare(struct ccwgroup_device *gdev)
|
|
{
|
|
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
|
|
if (card->discipline && card->discipline->prepare)
|
|
return card->discipline->prepare(gdev);
|
|
return 0;
|
|
}
|
|
|
|
static void qeth_core_complete(struct ccwgroup_device *gdev)
|
|
{
|
|
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
|
|
if (card->discipline && card->discipline->complete)
|
|
card->discipline->complete(gdev);
|
|
}
|
|
|
|
static int qeth_core_freeze(struct ccwgroup_device *gdev)
|
|
{
|
|
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
|
|
if (card->discipline && card->discipline->freeze)
|
|
return card->discipline->freeze(gdev);
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_core_thaw(struct ccwgroup_device *gdev)
|
|
{
|
|
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
|
|
if (card->discipline && card->discipline->thaw)
|
|
return card->discipline->thaw(gdev);
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_core_restore(struct ccwgroup_device *gdev)
|
|
{
|
|
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
|
|
if (card->discipline && card->discipline->restore)
|
|
return card->discipline->restore(gdev);
|
|
return 0;
|
|
}
|
|
|
|
static struct ccwgroup_driver qeth_core_ccwgroup_driver = {
|
|
.driver = {
|
|
.owner = THIS_MODULE,
|
|
.name = "qeth",
|
|
},
|
|
.setup = qeth_core_probe_device,
|
|
.remove = qeth_core_remove_device,
|
|
.set_online = qeth_core_set_online,
|
|
.set_offline = qeth_core_set_offline,
|
|
.shutdown = qeth_core_shutdown,
|
|
.prepare = qeth_core_prepare,
|
|
.complete = qeth_core_complete,
|
|
.freeze = qeth_core_freeze,
|
|
.thaw = qeth_core_thaw,
|
|
.restore = qeth_core_restore,
|
|
};
|
|
|
|
static ssize_t qeth_core_driver_group_store(struct device_driver *ddrv,
|
|
const char *buf, size_t count)
|
|
{
|
|
int err;
|
|
|
|
err = ccwgroup_create_dev(qeth_core_root_dev,
|
|
&qeth_core_ccwgroup_driver, 3, buf);
|
|
|
|
return err ? err : count;
|
|
}
|
|
static DRIVER_ATTR(group, 0200, NULL, qeth_core_driver_group_store);
|
|
|
|
static struct attribute *qeth_drv_attrs[] = {
|
|
&driver_attr_group.attr,
|
|
NULL,
|
|
};
|
|
static struct attribute_group qeth_drv_attr_group = {
|
|
.attrs = qeth_drv_attrs,
|
|
};
|
|
static const struct attribute_group *qeth_drv_attr_groups[] = {
|
|
&qeth_drv_attr_group,
|
|
NULL,
|
|
};
|
|
|
|
static struct {
|
|
const char str[ETH_GSTRING_LEN];
|
|
} qeth_ethtool_stats_keys[] = {
|
|
/* 0 */{"rx skbs"},
|
|
{"rx buffers"},
|
|
{"tx skbs"},
|
|
{"tx buffers"},
|
|
{"tx skbs no packing"},
|
|
{"tx buffers no packing"},
|
|
{"tx skbs packing"},
|
|
{"tx buffers packing"},
|
|
{"tx sg skbs"},
|
|
{"tx sg frags"},
|
|
/* 10 */{"rx sg skbs"},
|
|
{"rx sg frags"},
|
|
{"rx sg page allocs"},
|
|
{"tx large kbytes"},
|
|
{"tx large count"},
|
|
{"tx pk state ch n->p"},
|
|
{"tx pk state ch p->n"},
|
|
{"tx pk watermark low"},
|
|
{"tx pk watermark high"},
|
|
{"queue 0 buffer usage"},
|
|
/* 20 */{"queue 1 buffer usage"},
|
|
{"queue 2 buffer usage"},
|
|
{"queue 3 buffer usage"},
|
|
{"rx poll time"},
|
|
{"rx poll count"},
|
|
{"rx do_QDIO time"},
|
|
{"rx do_QDIO count"},
|
|
{"tx handler time"},
|
|
{"tx handler count"},
|
|
{"tx time"},
|
|
/* 30 */{"tx count"},
|
|
{"tx do_QDIO time"},
|
|
{"tx do_QDIO count"},
|
|
{"tx csum"},
|
|
{"tx lin"},
|
|
{"cq handler count"},
|
|
{"cq handler time"}
|
|
};
|
|
|
|
int qeth_core_get_sset_count(struct net_device *dev, int stringset)
|
|
{
|
|
switch (stringset) {
|
|
case ETH_SS_STATS:
|
|
return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN);
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_core_get_sset_count);
|
|
|
|
void qeth_core_get_ethtool_stats(struct net_device *dev,
|
|
struct ethtool_stats *stats, u64 *data)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
data[0] = card->stats.rx_packets -
|
|
card->perf_stats.initial_rx_packets;
|
|
data[1] = card->perf_stats.bufs_rec;
|
|
data[2] = card->stats.tx_packets -
|
|
card->perf_stats.initial_tx_packets;
|
|
data[3] = card->perf_stats.bufs_sent;
|
|
data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets
|
|
- card->perf_stats.skbs_sent_pack;
|
|
data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack;
|
|
data[6] = card->perf_stats.skbs_sent_pack;
|
|
data[7] = card->perf_stats.bufs_sent_pack;
|
|
data[8] = card->perf_stats.sg_skbs_sent;
|
|
data[9] = card->perf_stats.sg_frags_sent;
|
|
data[10] = card->perf_stats.sg_skbs_rx;
|
|
data[11] = card->perf_stats.sg_frags_rx;
|
|
data[12] = card->perf_stats.sg_alloc_page_rx;
|
|
data[13] = (card->perf_stats.large_send_bytes >> 10);
|
|
data[14] = card->perf_stats.large_send_cnt;
|
|
data[15] = card->perf_stats.sc_dp_p;
|
|
data[16] = card->perf_stats.sc_p_dp;
|
|
data[17] = QETH_LOW_WATERMARK_PACK;
|
|
data[18] = QETH_HIGH_WATERMARK_PACK;
|
|
data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers);
|
|
data[20] = (card->qdio.no_out_queues > 1) ?
|
|
atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0;
|
|
data[21] = (card->qdio.no_out_queues > 2) ?
|
|
atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0;
|
|
data[22] = (card->qdio.no_out_queues > 3) ?
|
|
atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0;
|
|
data[23] = card->perf_stats.inbound_time;
|
|
data[24] = card->perf_stats.inbound_cnt;
|
|
data[25] = card->perf_stats.inbound_do_qdio_time;
|
|
data[26] = card->perf_stats.inbound_do_qdio_cnt;
|
|
data[27] = card->perf_stats.outbound_handler_time;
|
|
data[28] = card->perf_stats.outbound_handler_cnt;
|
|
data[29] = card->perf_stats.outbound_time;
|
|
data[30] = card->perf_stats.outbound_cnt;
|
|
data[31] = card->perf_stats.outbound_do_qdio_time;
|
|
data[32] = card->perf_stats.outbound_do_qdio_cnt;
|
|
data[33] = card->perf_stats.tx_csum;
|
|
data[34] = card->perf_stats.tx_lin;
|
|
data[35] = card->perf_stats.cq_cnt;
|
|
data[36] = card->perf_stats.cq_time;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats);
|
|
|
|
void qeth_core_get_strings(struct net_device *dev, u32 stringset, u8 *data)
|
|
{
|
|
switch (stringset) {
|
|
case ETH_SS_STATS:
|
|
memcpy(data, &qeth_ethtool_stats_keys,
|
|
sizeof(qeth_ethtool_stats_keys));
|
|
break;
|
|
default:
|
|
WARN_ON(1);
|
|
break;
|
|
}
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_core_get_strings);
|
|
|
|
void qeth_core_get_drvinfo(struct net_device *dev,
|
|
struct ethtool_drvinfo *info)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
|
|
strlcpy(info->driver, card->options.layer2 ? "qeth_l2" : "qeth_l3",
|
|
sizeof(info->driver));
|
|
strlcpy(info->version, "1.0", sizeof(info->version));
|
|
strlcpy(info->fw_version, card->info.mcl_level,
|
|
sizeof(info->fw_version));
|
|
snprintf(info->bus_info, sizeof(info->bus_info), "%s/%s/%s",
|
|
CARD_RDEV_ID(card), CARD_WDEV_ID(card), CARD_DDEV_ID(card));
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo);
|
|
|
|
/* Helper function to fill 'advertizing' and 'supported' which are the same. */
|
|
/* Autoneg and full-duplex are supported and advertized uncondionally. */
|
|
/* Always advertize and support all speeds up to specified, and only one */
|
|
/* specified port type. */
|
|
static void qeth_set_ecmd_adv_sup(struct ethtool_cmd *ecmd,
|
|
int maxspeed, int porttype)
|
|
{
|
|
int port_sup, port_adv, spd_sup, spd_adv;
|
|
|
|
switch (porttype) {
|
|
case PORT_TP:
|
|
port_sup = SUPPORTED_TP;
|
|
port_adv = ADVERTISED_TP;
|
|
break;
|
|
case PORT_FIBRE:
|
|
port_sup = SUPPORTED_FIBRE;
|
|
port_adv = ADVERTISED_FIBRE;
|
|
break;
|
|
default:
|
|
port_sup = SUPPORTED_TP;
|
|
port_adv = ADVERTISED_TP;
|
|
WARN_ON_ONCE(1);
|
|
}
|
|
|
|
/* "Fallthrough" case'es ordered from high to low result in setting */
|
|
/* flags cumulatively, starting from the specified speed and down to */
|
|
/* the lowest possible. */
|
|
spd_sup = 0;
|
|
spd_adv = 0;
|
|
switch (maxspeed) {
|
|
case SPEED_10000:
|
|
spd_sup |= SUPPORTED_10000baseT_Full;
|
|
spd_adv |= ADVERTISED_10000baseT_Full;
|
|
case SPEED_1000:
|
|
spd_sup |= SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full;
|
|
spd_adv |= ADVERTISED_1000baseT_Half |
|
|
ADVERTISED_1000baseT_Full;
|
|
case SPEED_100:
|
|
spd_sup |= SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full;
|
|
spd_adv |= ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full;
|
|
case SPEED_10:
|
|
spd_sup |= SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full;
|
|
spd_adv |= ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full;
|
|
break;
|
|
default:
|
|
spd_sup = SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full;
|
|
spd_adv = ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full;
|
|
WARN_ON_ONCE(1);
|
|
}
|
|
ecmd->advertising = ADVERTISED_Autoneg | port_adv | spd_adv;
|
|
ecmd->supported = SUPPORTED_Autoneg | port_sup | spd_sup;
|
|
}
|
|
|
|
int qeth_core_ethtool_get_settings(struct net_device *netdev,
|
|
struct ethtool_cmd *ecmd)
|
|
{
|
|
struct qeth_card *card = netdev->ml_priv;
|
|
enum qeth_link_types link_type;
|
|
struct carrier_info carrier_info;
|
|
|
|
if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan))
|
|
link_type = QETH_LINK_TYPE_10GBIT_ETH;
|
|
else
|
|
link_type = card->info.link_type;
|
|
|
|
ecmd->transceiver = XCVR_INTERNAL;
|
|
ecmd->duplex = DUPLEX_FULL;
|
|
ecmd->autoneg = AUTONEG_ENABLE;
|
|
|
|
switch (link_type) {
|
|
case QETH_LINK_TYPE_FAST_ETH:
|
|
case QETH_LINK_TYPE_LANE_ETH100:
|
|
qeth_set_ecmd_adv_sup(ecmd, SPEED_100, PORT_TP);
|
|
ecmd->speed = SPEED_100;
|
|
ecmd->port = PORT_TP;
|
|
break;
|
|
|
|
case QETH_LINK_TYPE_GBIT_ETH:
|
|
case QETH_LINK_TYPE_LANE_ETH1000:
|
|
qeth_set_ecmd_adv_sup(ecmd, SPEED_1000, PORT_FIBRE);
|
|
ecmd->speed = SPEED_1000;
|
|
ecmd->port = PORT_FIBRE;
|
|
break;
|
|
|
|
case QETH_LINK_TYPE_10GBIT_ETH:
|
|
qeth_set_ecmd_adv_sup(ecmd, SPEED_10000, PORT_FIBRE);
|
|
ecmd->speed = SPEED_10000;
|
|
ecmd->port = PORT_FIBRE;
|
|
break;
|
|
|
|
default:
|
|
qeth_set_ecmd_adv_sup(ecmd, SPEED_10, PORT_TP);
|
|
ecmd->speed = SPEED_10;
|
|
ecmd->port = PORT_TP;
|
|
}
|
|
|
|
/* Check if we can obtain more accurate information. */
|
|
/* If QUERY_CARD_INFO command is not supported or fails, */
|
|
/* just return the heuristics that was filled above. */
|
|
if (qeth_query_card_info(card, &carrier_info) != 0)
|
|
return 0;
|
|
|
|
netdev_dbg(netdev,
|
|
"card info: card_type=0x%02x, port_mode=0x%04x, port_speed=0x%08x\n",
|
|
carrier_info.card_type,
|
|
carrier_info.port_mode,
|
|
carrier_info.port_speed);
|
|
|
|
/* Update attributes for which we've obtained more authoritative */
|
|
/* information, leave the rest the way they where filled above. */
|
|
switch (carrier_info.card_type) {
|
|
case CARD_INFO_TYPE_1G_COPPER_A:
|
|
case CARD_INFO_TYPE_1G_COPPER_B:
|
|
qeth_set_ecmd_adv_sup(ecmd, SPEED_1000, PORT_TP);
|
|
ecmd->port = PORT_TP;
|
|
break;
|
|
case CARD_INFO_TYPE_1G_FIBRE_A:
|
|
case CARD_INFO_TYPE_1G_FIBRE_B:
|
|
qeth_set_ecmd_adv_sup(ecmd, SPEED_1000, PORT_FIBRE);
|
|
ecmd->port = PORT_FIBRE;
|
|
break;
|
|
case CARD_INFO_TYPE_10G_FIBRE_A:
|
|
case CARD_INFO_TYPE_10G_FIBRE_B:
|
|
qeth_set_ecmd_adv_sup(ecmd, SPEED_10000, PORT_FIBRE);
|
|
ecmd->port = PORT_FIBRE;
|
|
break;
|
|
}
|
|
|
|
switch (carrier_info.port_mode) {
|
|
case CARD_INFO_PORTM_FULLDUPLEX:
|
|
ecmd->duplex = DUPLEX_FULL;
|
|
break;
|
|
case CARD_INFO_PORTM_HALFDUPLEX:
|
|
ecmd->duplex = DUPLEX_HALF;
|
|
break;
|
|
}
|
|
|
|
switch (carrier_info.port_speed) {
|
|
case CARD_INFO_PORTS_10M:
|
|
ecmd->speed = SPEED_10;
|
|
break;
|
|
case CARD_INFO_PORTS_100M:
|
|
ecmd->speed = SPEED_100;
|
|
break;
|
|
case CARD_INFO_PORTS_1G:
|
|
ecmd->speed = SPEED_1000;
|
|
break;
|
|
case CARD_INFO_PORTS_10G:
|
|
ecmd->speed = SPEED_10000;
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_settings);
|
|
|
|
static int __init qeth_core_init(void)
|
|
{
|
|
int rc;
|
|
|
|
pr_info("loading core functions\n");
|
|
INIT_LIST_HEAD(&qeth_core_card_list.list);
|
|
INIT_LIST_HEAD(&qeth_dbf_list);
|
|
rwlock_init(&qeth_core_card_list.rwlock);
|
|
mutex_init(&qeth_mod_mutex);
|
|
|
|
qeth_wq = create_singlethread_workqueue("qeth_wq");
|
|
|
|
rc = qeth_register_dbf_views();
|
|
if (rc)
|
|
goto out_err;
|
|
qeth_core_root_dev = root_device_register("qeth");
|
|
rc = PTR_RET(qeth_core_root_dev);
|
|
if (rc)
|
|
goto register_err;
|
|
qeth_core_header_cache = kmem_cache_create("qeth_hdr",
|
|
sizeof(struct qeth_hdr) + ETH_HLEN, 64, 0, NULL);
|
|
if (!qeth_core_header_cache) {
|
|
rc = -ENOMEM;
|
|
goto slab_err;
|
|
}
|
|
qeth_qdio_outbuf_cache = kmem_cache_create("qeth_buf",
|
|
sizeof(struct qeth_qdio_out_buffer), 0, 0, NULL);
|
|
if (!qeth_qdio_outbuf_cache) {
|
|
rc = -ENOMEM;
|
|
goto cqslab_err;
|
|
}
|
|
rc = ccw_driver_register(&qeth_ccw_driver);
|
|
if (rc)
|
|
goto ccw_err;
|
|
qeth_core_ccwgroup_driver.driver.groups = qeth_drv_attr_groups;
|
|
rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver);
|
|
if (rc)
|
|
goto ccwgroup_err;
|
|
|
|
return 0;
|
|
|
|
ccwgroup_err:
|
|
ccw_driver_unregister(&qeth_ccw_driver);
|
|
ccw_err:
|
|
kmem_cache_destroy(qeth_qdio_outbuf_cache);
|
|
cqslab_err:
|
|
kmem_cache_destroy(qeth_core_header_cache);
|
|
slab_err:
|
|
root_device_unregister(qeth_core_root_dev);
|
|
register_err:
|
|
qeth_unregister_dbf_views();
|
|
out_err:
|
|
pr_err("Initializing the qeth device driver failed\n");
|
|
return rc;
|
|
}
|
|
|
|
static void __exit qeth_core_exit(void)
|
|
{
|
|
qeth_clear_dbf_list();
|
|
destroy_workqueue(qeth_wq);
|
|
ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
|
|
ccw_driver_unregister(&qeth_ccw_driver);
|
|
kmem_cache_destroy(qeth_qdio_outbuf_cache);
|
|
kmem_cache_destroy(qeth_core_header_cache);
|
|
root_device_unregister(qeth_core_root_dev);
|
|
qeth_unregister_dbf_views();
|
|
pr_info("core functions removed\n");
|
|
}
|
|
|
|
module_init(qeth_core_init);
|
|
module_exit(qeth_core_exit);
|
|
MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
|
|
MODULE_DESCRIPTION("qeth core functions");
|
|
MODULE_LICENSE("GPL");
|